diff --git a/app/Helpers/date_time.php b/app/Helpers/date_time.php
index 19963b7..dea70f1 100644
--- a/app/Helpers/date_time.php
+++ b/app/Helpers/date_time.php
@@ -1,23 +1,6 @@
 <?php
 
-function formatDate($date)
-{
-    if (!$date || $date == '0000-00-00') {
-        return;
-    }
-
-    $explodedDate = explode('-', $date);
-
-    if (count($explodedDate) == 3 && checkdate($explodedDate[1], $explodedDate[0], $explodedDate[2])) {
-        return $explodedDate[2].'-'.$explodedDate[1].'-'.$explodedDate[0];
-    } elseif (count($explodedDate) == 3 && checkdate($explodedDate[1], $explodedDate[2], $explodedDate[0])) {
-        return $explodedDate[2].'-'.$explodedDate[1].'-'.$explodedDate[0];
-    }
-
-    throw new App\Exceptions\InvalidDateException('Invalid date format.');
-}
-
-function dateId($date)
+function date_id($date)
 {
     if (is_null($date) || $date == '0000-00-00') {
         return '-';
@@ -26,7 +9,7 @@ function dateId($date)
     $explodedDate = explode('-', $date);
 
     if (count($explodedDate) == 3 && checkdate($explodedDate[1], $explodedDate[2], $explodedDate[0])) {
-        $months = getMonths();
+        $months = get_months();
 
         return $explodedDate[2].' '.$months[$explodedDate[1]].' '.$explodedDate[0];
     }
@@ -34,24 +17,24 @@ function dateId($date)
     throw new App\Exceptions\InvalidDateException('Invalid date format.');
 }
 
-function monthNumber($number)
+function month_number($number)
 {
     return str_pad($number, 2, '0', STR_PAD_LEFT);
 }
 
-function monthId($monthNumber)
+function month_id($monthNumber)
 {
     if (is_null($monthNumber)) {
         return $monthNumber;
     }
 
-    $months = getMonths();
-    $monthNumber = monthNumber($monthNumber);
+    $months = get_months();
+    $monthNumber = month_number($monthNumber);
 
     return $months[$monthNumber];
 }
 
-function getMonths()
+function get_months()
 {
     return [
         '01' => __('time.months.01'),
@@ -69,7 +52,7 @@ function getMonths()
     ];
 }
 
-function getYears()
+function get_years()
 {
     $yearRange = range(2017, date('Y'));
     foreach ($yearRange as $year) {
@@ -79,7 +62,7 @@ function getYears()
     return $years;
 }
 
-function monthDateArray($year, $month)
+function month_date_array($year, $month)
 {
     $dateCount = Carbon\Carbon::parse($year.'-'.$month)->format('t');
     $dates = [];
diff --git a/app/Helpers/helpers.php b/app/Helpers/helpers.php
index d2a0006..8b2dbd0 100644
--- a/app/Helpers/helpers.php
+++ b/app/Helpers/helpers.php
@@ -1,17 +1,17 @@
 <?php
 
-function formatNo($number)
+function format_no($number)
 {
     return number_format($number, 0, ',', '.');
 }
 
-function formatRp($number)
+function format_rp($number)
 {
     if ($number == 0) {
         return 0;
     }
 
-    return 'Rp. '.formatNo($number);
+    return 'Rp. '.format_no($number);
 }
 
 /**
@@ -31,7 +31,7 @@ function html_link_to_route($name, $title = null, $parameters = [], $attributes
     return app('html')->decode(link_to_route($name, $title, $parameters, $attributes));
 }
 
-function formatSizeUnits($bytes)
+function format_size_units($bytes)
 {
     if ($bytes >= 1073741824) {
         $bytes = number_format($bytes / 1073741824, 2).' GB';
diff --git a/app/Http/Controllers/CartController.php b/app/Http/Controllers/CartController.php
index fb586a0..7397693 100644
--- a/app/Http/Controllers/CartController.php
+++ b/app/Http/Controllers/CartController.php
@@ -125,8 +125,8 @@ class CartController extends Controller
             'payment'        => 'required|numeric|min:'.$request->get('total').'|max:'.($request->get('total') + 100000),
             'notes'          => 'nullable|string|max:100',
         ], [
-            'payment.min' => 'Pembayaran minimal '.formatRp($request->get('total')).'.',
-            'payment.max' => 'Pembayaran terlalu besar '.formatRp($request->get('payment')).'.',
+            'payment.min' => 'Pembayaran minimal '.format_rp($request->get('total')).'.',
+            'payment.max' => 'Pembayaran terlalu besar '.format_rp($request->get('payment')).'.',
         ]);
         $draft = $this->cart->updateDraftAttributes($draftKey, $request->only('customer', 'notes', 'payment'));
 
diff --git a/app/Http/Controllers/Reports/SalesController.php b/app/Http/Controllers/Reports/SalesController.php
index 84174df..d3e2aaf 100755
--- a/app/Http/Controllers/Reports/SalesController.php
+++ b/app/Http/Controllers/Reports/SalesController.php
@@ -27,8 +27,8 @@ class SalesController extends Controller
 
     public function monthly(Request $request)
     {
-        $years = getYears();
-        $months = getMonths();
+        $years = get_years();
+        $months = get_months();
         $year = $request->get('year', date('Y'));
         $month = $request->get('month', date('m'));
         $reports = $this->getMonthlyReports($year, $month);
@@ -41,7 +41,7 @@ class SalesController extends Controller
         $year = $request->get('year', date('Y'));
 
         $reports = $this->getYearlyReports($year);
-        $years = getYears();
+        $years = get_years();
 
         return view('reports.sales.yearly', compact('reports', 'years', 'year'));
     }
diff --git a/resources/views/backups/index.blade.php b/resources/views/backups/index.blade.php
index 745e233..2848ff7 100644
--- a/resources/views/backups/index.blade.php
+++ b/resources/views/backups/index.blade.php
@@ -21,7 +21,7 @@
                     <tr>
                         <td>{{ $key + 1 }}</td>
                         <td>{{ $backup->getFilename() }}</td>
-                        <td>{{ formatSizeUnits($backup->getSize()) }}</td>
+                        <td>{{ format_size_units($backup->getSize()) }}</td>
                         <td>{{ date('Y-m-d H:i:s', $backup->getMTime()) }}</td>
                         <td class="text-center">
                             <a href="{{ route('backups.index', ['action' => 'restore', 'file_name' => $backup->getFilename()]) }}"
diff --git a/resources/views/cart/partials/draft-confirm.blade.php b/resources/views/cart/partials/draft-confirm.blade.php
index 570be31..49261e9 100644
--- a/resources/views/cart/partials/draft-confirm.blade.php
+++ b/resources/views/cart/partials/draft-confirm.blade.php
@@ -19,10 +19,10 @@
                         <tr>
                             <td>{{ $key + 1 }}</td>
                             <td>{{ $item->name }}</td>
-                            <td class="text-right">{{ formatRp($item->price) }}</td>
-                            <td class="text-right">{{ formatRp($item->item_discount) }}</td>
+                            <td class="text-right">{{ format_rp($item->price) }}</td>
+                            <td class="text-right">{{ format_rp($item->item_discount) }}</td>
                             <td class="text-center">{{ $item->qty }}</td>
-                            <td class="text-right">{{ formatRp($item->subtotal) }}</td>
+                            <td class="text-right">{{ format_rp($item->subtotal) }}</td>
                         </tr>
                         @empty
                         @endforelse
@@ -32,15 +32,15 @@
 
 
                             <th colspan="5" class="text-right">{{ trans('transaction.subtotal') }} :</th>
-                            <th class="text-right">{{ formatRp($draft->getSubtotal()) }}</th>
+                            <th class="text-right">{{ format_rp($draft->getSubtotal()) }}</th>
                         </tr>
                         <tr>
                             <th colspan="5" class="text-right">{{ trans('transaction.discount_total') }} :</th>
-                            <th class="text-right">{{ formatRp($draft->getDiscountTotal()) }}</th>
+                            <th class="text-right">{{ format_rp($draft->getDiscountTotal()) }}</th>
                         </tr>
                         <tr>
                             <th colspan="5" class="text-right">{{ trans('transaction.total') }} :</th>
-                            <th class="text-right">{{ formatRp($draft->getTotal()) }}</th>
+                            <th class="text-right">{{ format_rp($draft->getTotal()) }}</th>
                         </tr>
                     </tfoot>
                 </table>
@@ -55,9 +55,9 @@
                     <tbody>
                         <tr><td>{{ trans('transaction.customer_name') }}</td><td>{{ $draft->customer['name'] }}</td></tr>
                         <tr><td>{{ trans('transaction.customer_phone') }}</td><td>{{ $draft->customer['phone'] }}</td></tr>
-                        <tr><td>{{ trans('transaction.payment') }}</td><th class="text-right">{{ formatRp($draft->payment) }}</th></tr>
-                        <tr><td>{{ trans('transaction.total') }}</td><th class="text-right">{{ formatRp($draft->getTotal()) }}</th></tr>
-                        <tr><td>{{ trans('transaction.exchange') }}</td><th class="text-right">{{ formatRp($draft->getExchange()) }}</th></tr>
+                        <tr><td>{{ trans('transaction.payment') }}</td><th class="text-right">{{ format_rp($draft->payment) }}</th></tr>
+                        <tr><td>{{ trans('transaction.total') }}</td><th class="text-right">{{ format_rp($draft->getTotal()) }}</th></tr>
+                        <tr><td>{{ trans('transaction.exchange') }}</td><th class="text-right">{{ format_rp($draft->getExchange()) }}</th></tr>
                         <tr><td>{{ trans('transaction.notes') }}</td><td>{{ $draft->notes }}</td></tr>
                     </tbody>
                 </table>
diff --git a/resources/views/cart/partials/draft-item-list.blade.php b/resources/views/cart/partials/draft-item-list.blade.php
index 7029cae..40b9a9c 100644
--- a/resources/views/cart/partials/draft-item-list.blade.php
+++ b/resources/views/cart/partials/draft-item-list.blade.php
@@ -27,7 +27,7 @@
                         {{ $item->name }} <br>
                         <small class="text-primary">({{ $item->unit }})</small>
                     </td>
-                    <td>{{ formatRp($item->price) }}</td>
+                    <td>{{ format_rp($item->price) }}</td>
                         {{ Form::open(['route' => ['cart.update-draft-item', $draft->draftKey], 'method' => 'patch']) }}
                         {{ Form::hidden('item_key', $key) }}
                     <td class="text-right">
@@ -43,7 +43,7 @@
                             'min' => 1
                         ]) }}
                     </td>
-                    <td class="text-right">{{ formatRp($item->subtotal) }}</td>
+                    <td class="text-right">{{ format_rp($item->subtotal) }}</td>
                         {{ Form::submit('update-item-' . $key, ['style'=>'display:none']) }}
                         {{ Form::close() }}
                     <td class="text-center show-on-hover-parent">
@@ -60,17 +60,17 @@
             <tfoot>
                 <tr>
                     <th colspan="5" class="text-right">{{ trans('transaction.subtotal') }} :</th>
-                    <th class="text-right">{{ formatRp($draft->getSubtotal()) }}</th>
+                    <th class="text-right">{{ format_rp($draft->getSubtotal()) }}</th>
                     <th></th>
                 </tr>
                 <tr>
                     <th colspan="5" class="text-right">{{ trans('transaction.discount_total') }} :</th>
-                    <th class="text-right">{{ formatRp($draft->getDiscountTotal()) }}</th>
+                    <th class="text-right">{{ format_rp($draft->getDiscountTotal()) }}</th>
                     <th></th>
                 </tr>
                 <tr>
                     <th colspan="5" class="text-right">{{ trans('transaction.total') }} :</th>
-                    <th class="text-right">{{ formatRp($draft->getTotal()) }}</th>
+                    <th class="text-right">{{ format_rp($draft->getTotal()) }}</th>
                     <th></th>
                 </tr>
             </tfoot>
diff --git a/resources/views/cart/partials/product-search-result-box.blade.php b/resources/views/cart/partials/product-search-result-box.blade.php
index 60e050c..1266191 100644
--- a/resources/views/cart/partials/product-search-result-box.blade.php
+++ b/resources/views/cart/partials/product-search-result-box.blade.php
@@ -13,7 +13,7 @@
             <tr>
                 <td>{{ $product->name }}</td>
                 <td>{{ $product->unit->name }}</td>
-                <td>{{ formatRp($product->getPrice($draftType)) }}</td>
+                <td>{{ format_rp($product->getPrice($draftType)) }}</td>
                 <td>
                     <form action="{{ route('cart.add-draft-item', [$draftKey, $product->id]) }}" method="post" style="display:inline">
                         <input type="hidden" name="query" value="{{ isset($query) ? $query : request('query') }}">
diff --git a/resources/views/log-files.blade.php b/resources/views/log-files.blade.php
index ca3dd32..4edc119 100755
--- a/resources/views/log-files.blade.php
+++ b/resources/views/log-files.blade.php
@@ -20,7 +20,7 @@
                     <tr>
                         <td>0</td>
                         <td>error_log</td>
-                        <td>{{ formatSizeUnits(File::size('error_log')) }}</td>
+                        <td>{{ format_size_units(File::size('error_log')) }}</td>
                         <td>{{ date('Y-m-d H:i:s', File::lastModified('error_log')) }}</td>
                         <td>
                             {!! html_link_to_route('log-files.server-error-log','',[],[
@@ -37,7 +37,7 @@
                     <tr>
                         <td>{{ $key + 1 }}</td>
                         <td>{{ $logFile->getFilename() }}</td>
-                        <td>{{ formatSizeUnits($logFile->getSize()) }}</td>
+                        <td>{{ format_size_units($logFile->getSize()) }}</td>
                         <td>{{ date('Y-m-d H:i:s', $logFile->getMTime()) }}</td>
                         <td>
                             {{ link_to_route('log-files.show', 'Lihat', [$logFile->getFilename()],[
diff --git a/resources/views/products/index.blade.php b/resources/views/products/index.blade.php
index ac6476d..386e624 100644
--- a/resources/views/products/index.blade.php
+++ b/resources/views/products/index.blade.php
@@ -40,8 +40,8 @@
                         <td class="text-center">{{ $products->firstItem() + $key }}</td>
                         <td>{{ $product->name }}</td>
                         <td>{{ $product->unit->name }}</td>
-                        <td class="text-right">{{ formatRp($product->cash_price) }}</td>
-                        <td class="text-right">{{ formatRp($product->credit_price) }}</td>
+                        <td class="text-right">{{ format_rp($product->cash_price) }}</td>
+                        <td class="text-right">{{ format_rp($product->credit_price) }}</td>
                         <td class="text-center">
                             {!! link_to_route('products.index', __('app.edit'), ['action' => 'edit', 'id' => $product->id] + request(['page','q']), ['id' => 'edit-product-' . $product->id]) !!} |
                             {!! link_to_route('products.index', __('app.delete'), ['action' => 'delete', 'id' => $product->id] + request(['page','q']), ['id' => 'del-product-' . $product->id]) !!}
diff --git a/resources/views/products/partials/forms.blade.php b/resources/views/products/partials/forms.blade.php
index a1c886e..4a5121e 100644
--- a/resources/views/products/partials/forms.blade.php
+++ b/resources/views/products/partials/forms.blade.php
@@ -37,8 +37,8 @@
                 <tbody>
                     <tr><th>{{ __('product.name') }}</th><td>{{ $editableProduct->name }}</td></tr>
                     <tr><th>{{ __('product.unit') }}</th><td>{{ $editableProduct->unit->name }}</td></tr>
-                    <tr><th>{{ __('product.cash_price') }}</th><td>{{ formatRp($editableProduct->cash_price) }}</td></tr>
-                    <tr><th>{{ __('product.credit_price') }}</th><td>{{ formatRp($editableProduct->credit_price) }}</td></tr>
+                    <tr><th>{{ __('product.cash_price') }}</th><td>{{ format_rp($editableProduct->cash_price) }}</td></tr>
+                    <tr><th>{{ __('product.credit_price') }}</th><td>{{ format_rp($editableProduct->credit_price) }}</td></tr>
                 </tbody>
             </table>
             <hr>
diff --git a/resources/views/products/price-list.blade.php b/resources/views/products/price-list.blade.php
index 7b45004..a64a720 100644
--- a/resources/views/products/price-list.blade.php
+++ b/resources/views/products/price-list.blade.php
@@ -22,8 +22,8 @@
                         @foreach($chunckedProducts as $key => $product)
                         <tr>
                             <td>{{ $key + 1 }})&nbsp;{{ $product->name }} ({{ $product->unit->name }})</td>
-                            <td class="text-right" style="width:20%">{{ formatRp($product->cash_price) }}</td>
-                            <td class="text-right" style="width:20%">{{ formatRp($product->credit_price) }}</td>
+                            <td class="text-right" style="width:20%">{{ format_rp($product->cash_price) }}</td>
+                            <td class="text-right" style="width:20%">{{ format_rp($product->credit_price) }}</td>
                         </tr>
                         @endforeach
                     </tbody>
diff --git a/resources/views/reports/sales/daily.blade.php b/resources/views/reports/sales/daily.blade.php
index 6692548..1f1f335 100755
--- a/resources/views/reports/sales/daily.blade.php
+++ b/resources/views/reports/sales/daily.blade.php
@@ -1,6 +1,6 @@
 @extends('layouts.app')
 
-@section('title', __('report.daily', ['date' => dateId($date)]))
+@section('title', __('report.daily', ['date' => date_id($date)]))
 
 @section('content')
 
@@ -14,7 +14,7 @@
 {{ link_to_route(
     'reports.sales.monthly',
     __('report.view_monthly'),
-    ['month' => monthNumber($dt->month), 'year' => $dt->year],
+    ['month' => month_number($dt->month), 'year' => $dt->year],
     ['class' => 'btn btn-default btn-sm']
 ) }}
 {{ Form::close() }}
@@ -31,8 +31,8 @@
             @forelse($transactions as $key => $transaction)
             <tr>
                 <td class="text-center">{{ 1 + $key }}</td>
-                <td class="text-center">{{ dateId($transaction->created_at->format('Y-m-d')) }}</td>
-                <td class="text-right">{{ formatRp($transaction->total) }}</td>
+                <td class="text-center">{{ date_id($transaction->created_at->format('Y-m-d')) }}</td>
+                <td class="text-right">{{ format_rp($transaction->total) }}</td>
                 <td class="text-center">
                     {{ link_to_route(
                         'transactions.show',
@@ -53,7 +53,7 @@
         <tfoot>
             <tr>
                 <th class="text-right" colspan="2">{{ __('app.total') }}</th>
-                <th class="text-right">{{ formatRp($transactions->sum('total')) }}</th>
+                <th class="text-right">{{ format_rp($transactions->sum('total')) }}</th>
                 <th>&nbsp;</th>
             </tr>
         </tfoot>
diff --git a/resources/views/reports/sales/monthly.blade.php b/resources/views/reports/sales/monthly.blade.php
index 06a8374..74c0198 100755
--- a/resources/views/reports/sales/monthly.blade.php
+++ b/resources/views/reports/sales/monthly.blade.php
@@ -34,7 +34,7 @@
             </thead>
             <tbody>
                 @php $chartData = []; @endphp
-                @foreach(monthDateArray($year, $month) as $dateNumber)
+                @foreach(month_date_array($year, $month) as $dateNumber)
                 @php
                     $any = isset($reports[$dateNumber]);
                     $count = $any ? $reports[$dateNumber]->count : 0;
@@ -42,9 +42,9 @@
                 @endphp
                 @if ($any)
                     <tr>
-                        <td class="text-center">{{ dateId($date = $year.'-'.$month.'-'.$dateNumber) }}</td>
+                        <td class="text-center">{{ date_id($date = $year.'-'.$month.'-'.$dateNumber) }}</td>
                         <td class="text-center">{{ $count }}</td>
-                        <td class="text-right">{{ formatRp($subtotal) }}</td>
+                        <td class="text-right">{{ format_rp($subtotal) }}</td>
                         <td class="text-center">
                             {{ link_to_route(
                                 'reports.sales.daily',
@@ -52,7 +52,7 @@
                                 ['date' => $date],
                                 [
                                     'class' => 'btn btn-info btn-xs',
-                                    'title' => __('report.daily', ['date' => dateId($date)]),
+                                    'title' => __('report.daily', ['date' => date_id($date)]),
                                 ]
                             ) }}
                         </td>
@@ -67,7 +67,7 @@
                 <tr>
                     <th class="text-right">{{ __('app.total') }}</th>
                     <th class="text-center">{{ $reports->sum('count') }}</th>
-                    <th class="text-right">{{ formatRp($reports->sum('amount')) }}</th>
+                    <th class="text-right">{{ format_rp($reports->sum('amount')) }}</th>
                     <td>&nbsp;</td>
                 </tr>
             </tfoot>
diff --git a/resources/views/reports/sales/yearly.blade.php b/resources/views/reports/sales/yearly.blade.php
index 394ade1..35b3a06 100755
--- a/resources/views/reports/sales/yearly.blade.php
+++ b/resources/views/reports/sales/yearly.blade.php
@@ -32,30 +32,30 @@
             </thead>
             <tbody>
                 @php $chartData = []; @endphp
-                @foreach(getMonths() as $monthNumber => $monthName)
+                @foreach(get_months() as $month_number => $monthName)
                 @php
-                    $any = isset($reports[$monthNumber]);
-                    $omzet = $any ? $reports[$monthNumber]->omzet : 0
+                    $any = isset($reports[$month_number]);
+                    $omzet = $any ? $reports[$month_number]->omzet : 0
                 @endphp
                 <tr>
-                    <td class="text-center">{{ monthId($monthNumber) }}</td>
-                    <td class="text-center">{{ $any ? $reports[$monthNumber]->count : 0 }}</td>
-                    <td class="text-right">{{ formatRp($omzet) }}</td>
+                    <td class="text-center">{{ month_id($month_number) }}</td>
+                    <td class="text-center">{{ $any ? $reports[$month_number]->count : 0 }}</td>
+                    <td class="text-right">{{ format_rp($omzet) }}</td>
                     <td class="text-center">
                         {{ link_to_route(
                             'reports.sales.monthly',
                             __('report.view_monthly'),
-                            ['month' => $monthNumber, 'year' => $year],
+                            ['month' => $month_number, 'year' => $year],
                             [
                                 'class' => 'btn btn-info btn-xs',
-                                'title' => __('report.monthly', ['year_month' => monthId($monthNumber)]),
-                                'title' => __('report.monthly', ['year_month' => monthId($monthNumber).' '.$year]),
+                                'title' => __('report.monthly', ['year_month' => month_id($month_number)]),
+                                'title' => __('report.monthly', ['year_month' => month_id($month_number).' '.$year]),
                             ]
                         ) }}
                     </td>
                 </tr>
                 @php
-                    $chartData[] = ['month' => monthId($monthNumber), 'value' => $omzet];
+                    $chartData[] = ['month' => month_id($month_number), 'value' => $omzet];
                 @endphp
                 @endforeach
             </tbody>
@@ -63,7 +63,7 @@
                 <tr>
                     <th class="text-center">{{ trans('app.total') }}</th>
                     <th class="text-center">{{ $reports->sum('count') }}</th>
-                    <th class="text-right">{{ formatRp($reports->sum('omzet')) }}</th>
+                    <th class="text-right">{{ format_rp($reports->sum('omzet')) }}</th>
                     <td>&nbsp;</td>
                 </tr>
             </tfoot>
diff --git a/resources/views/transactions/index.blade.php b/resources/views/transactions/index.blade.php
index b03bb59..39538ea 100644
--- a/resources/views/transactions/index.blade.php
+++ b/resources/views/transactions/index.blade.php
@@ -51,7 +51,7 @@
                         {{ $transaction->customer['phone'] ? '(' . $transaction->customer['phone'] . ')' : '' }}
                     </td>
                     <td>{{ $transaction->items_count }}</td>
-                    <td class="text-right">{{ formatRp($transaction->total) }}</td>
+                    <td class="text-right">{{ format_rp($transaction->total) }}</td>
                     <td class="text-center">
                         {{ link_to_route('transactions.show', trans('app.show'), $transaction->invoice_no) }} |
                         {{ link_to_route('transactions.receipt', trans('app.print'), $transaction->invoice_no) }}
diff --git a/resources/views/transactions/pdf.blade.php b/resources/views/transactions/pdf.blade.php
index f12d40a..c16ae46 100644
--- a/resources/views/transactions/pdf.blade.php
+++ b/resources/views/transactions/pdf.blade.php
@@ -47,32 +47,32 @@
                         <tr>
                             <td class="text-center border-bottom">{{ $item['qty'] }}</td>
                             <td class="text-right border-bottom">
-                                {{ formatRp($item['price']) }}<br>({{ formatRp($item['item_discount']) }})
+                                {{ format_rp($item['price']) }}<br>({{ format_rp($item['item_discount']) }})
                             </td>
-                            <td class="text-right border-bottom">{{ formatRp($item['subtotal']) }}</td>
+                            <td class="text-right border-bottom">{{ format_rp($item['subtotal']) }}</td>
                         </tr>
                         <?php $discountTotal += $item['item_discount_subtotal'] ?>
                         @endforeach
                         @if ($loop->last && $loop->parent->last)
                         <tr>
                             <th colspan="2" class="text-right">{{ trans('transaction.subtotal') }} :</th>
-                            <th class="text-right">{{ formatRp($transaction['total'] + $discountTotal) }}</th>
+                            <th class="text-right">{{ format_rp($transaction['total'] + $discountTotal) }}</th>
                         </tr>
                         <tr>
                             <th colspan="2" class="text-right">{{ trans('transaction.discount_total') }} :</th>
-                            <th class="text-right">{{ formatRp($discountTotal) }}</th>
+                            <th class="text-right">{{ format_rp($discountTotal) }}</th>
                         </tr>
                         <tr>
                             <th colspan="2" class="text-right">{{ trans('transaction.total') }} :</th>
-                            <th class="text-right">{{ formatRp($transaction['total']) }}</th>
+                            <th class="text-right">{{ format_rp($transaction['total']) }}</th>
                         </tr>
                         <tr>
                             <th colspan="2" class="text-right">{{ trans('transaction.payment') }} :</th>
-                            <th class="text-right">{{ formatRp($transaction->payment) }}</th>
+                            <th class="text-right">{{ format_rp($transaction->payment) }}</th>
                         </tr>
                         <tr>
                             <th colspan="2" class="text-right">{{ trans('transaction.exchange') }} :</th>
-                            <th class="text-right">{{ formatRp($transaction->getExchange()) }}</th>
+                            <th class="text-right">{{ format_rp($transaction->getExchange()) }}</th>
                         </tr>
                         @endif
                     </tbody>
diff --git a/resources/views/transactions/receipt.blade.php b/resources/views/transactions/receipt.blade.php
index a884566..3edf2e2 100644
--- a/resources/views/transactions/receipt.blade.php
+++ b/resources/views/transactions/receipt.blade.php
@@ -53,31 +53,31 @@
         <tr>
             <td class="text-center border-bottom" style="vertical-align: top;">{{ $item['qty'] }}</td>
             <td class="text-right border-bottom">
-                {{ formatRp($item['price']) }} ({{ formatRp($item['item_discount']) }})
+                {{ format_rp($item['price']) }} ({{ format_rp($item['item_discount']) }})
             </td>
-            <td class="text-right border-bottom">{{ formatRp($item['subtotal']) }}</td>
+            <td class="text-right border-bottom">{{ format_rp($item['subtotal']) }}</td>
         </tr>
         <?php $discountTotal += $item['item_discount_subtotal'] ?>
         @endforeach
         <tr>
             <th colspan="2" class="text-right">{{ trans('transaction.subtotal') }} :</th>
-            <th class="text-right">{{ formatRp($transaction['total'] + $discountTotal) }}</th>
+            <th class="text-right">{{ format_rp($transaction['total'] + $discountTotal) }}</th>
         </tr>
         <tr>
             <th colspan="2" class="text-right">{{ trans('transaction.discount_total') }} :</th>
-            <th class="text-right">{{ formatRp($discountTotal) }}</th>
+            <th class="text-right">{{ format_rp($discountTotal) }}</th>
         </tr>
         <tr>
             <th colspan="2" class="text-right">{{ trans('transaction.total') }} :</th>
-            <th class="text-right">{{ formatRp($transaction['total']) }}</th>
+            <th class="text-right">{{ format_rp($transaction['total']) }}</th>
         </tr>
         <tr>
             <th colspan="2" class="text-right">{{ trans('transaction.payment') }} :</th>
-            <th class="text-right">{{ formatRp($transaction->payment) }}</th>
+            <th class="text-right">{{ format_rp($transaction->payment) }}</th>
         </tr>
         <tr>
             <th colspan="2" class="text-right">{{ trans('transaction.exchange') }} :</th>
-            <th class="text-right">{{ formatRp($transaction->getExchange()) }}</th>
+            <th class="text-right">{{ format_rp($transaction->getExchange()) }}</th>
         </tr>
     </tbody>
 </table>
diff --git a/resources/views/transactions/show.blade.php b/resources/views/transactions/show.blade.php
index 925a904..21d7d80 100644
--- a/resources/views/transactions/show.blade.php
+++ b/resources/views/transactions/show.blade.php
@@ -20,9 +20,9 @@
                         <tr><td>{{ trans('transaction.customer_name') }}</td><td>{{ $transaction->customer['name'] }}</td></tr>
                         <tr><td>{{ trans('transaction.customer_phone') }}</td><td>{{ $transaction->customer['phone'] }}</td></tr>
                         <tr><td>{{ trans('transaction.items_count') }}</td><td>{{ $transaction->items_count }}</td></tr>
-                        <tr><td>{{ trans('transaction.total') }}</td><td class="text-right strong">{{ formatRp($transaction->total) }}</td></tr>
-                        <tr><td>{{ trans('transaction.payment') }}</td><td class="text-right">{{ formatRp($transaction->payment) }}</td></tr>
-                        <tr><td>{{ trans('transaction.exchange') }}</td><td class="text-right">{{ formatRp($transaction->getExchange()) }}</td></tr>
+                        <tr><td>{{ trans('transaction.total') }}</td><td class="text-right strong">{{ format_rp($transaction->total) }}</td></tr>
+                        <tr><td>{{ trans('transaction.payment') }}</td><td class="text-right">{{ format_rp($transaction->payment) }}</td></tr>
+                        <tr><td>{{ trans('transaction.exchange') }}</td><td class="text-right">{{ format_rp($transaction->getExchange()) }}</td></tr>
                     </tbody>
                 </table>
             </div>
@@ -52,10 +52,10 @@
                         {{ $item['name'] }} <br>
                         <small class="text-primary">({{ $item['unit'] }})</small>
                     </td>
-                    <td class="text-right">{{ formatRp($item['price']) }}</td>
-                    <td class="text-right">{{ formatRp($item['item_discount']) }}</td>
+                    <td class="text-right">{{ format_rp($item['price']) }}</td>
+                    <td class="text-right">{{ format_rp($item['item_discount']) }}</td>
                     <td class="text-center">{{ $item['qty'] }}</td>
-                    <td class="text-right">{{ formatRp($item['subtotal']) }}</td>
+                    <td class="text-right">{{ format_rp($item['subtotal']) }}</td>
                 </tr>
                 <?php $discountTotal += $item['item_discount_subtotal'] ?>
             @endforeach
@@ -63,15 +63,15 @@
             <tfoot>
                 <tr>
                     <th colspan="5" class="text-right">{{ trans('transaction.subtotal') }} :</th>
-                    <th class="text-right">{{ formatRp($transaction['total'] + $discountTotal) }}</th>
+                    <th class="text-right">{{ format_rp($transaction['total'] + $discountTotal) }}</th>
                 </tr>
                 <tr>
                     <th colspan="5" class="text-right">{{ trans('transaction.discount_total') }} :</th>
-                    <th class="text-right">{{ formatRp($discountTotal) }}</th>
+                    <th class="text-right">{{ format_rp($discountTotal) }}</th>
                 </tr>
                 <tr>
                     <th colspan="5" class="text-right">{{ trans('transaction.total') }} :</th>
-                    <th class="text-right">{{ formatRp($transaction['total']) }}</th>
+                    <th class="text-right">{{ format_rp($transaction['total']) }}</th>
                 </tr>
             </tfoot>
         </table>
diff --git a/tests/Feature/TransactionEntryTest.php b/tests/Feature/TransactionEntryTest.php
index b602dea..f67ca46 100644
--- a/tests/Feature/TransactionEntryTest.php
+++ b/tests/Feature/TransactionEntryTest.php
@@ -67,7 +67,7 @@ class TransactionEntryTest extends BrowserKitTestCase
         $this->seePageIs(route('cart.show', [$draft->draftKey, 'query' => 'testing']));
         // See product list appears
         $this->see($product->name);
-        $this->see(formatRp($product->credit_price));
+        $this->see(format_rp($product->credit_price));
         $this->seeElement('form', ['action' => route('cart.add-draft-item', [$draft->draftKey, $product->id])]);
         $this->seeElement('input', ['id' => 'qty-'.$product->id, 'name' => 'qty']);
         $this->seeElement('input', ['id' => 'add-product-'.$product->id]);
@@ -110,7 +110,7 @@ class TransactionEntryTest extends BrowserKitTestCase
         $this->seeElement('input', ['id' => 'qty-'. 0]);
         $this->seeElement('input', ['id' => 'item_discount-'. 0]);
         $this->seeElement('button', ['id' => 'remove-item-'. 0]);
-        $this->see(formatRp(3800));
+        $this->see(format_rp(3800));
     }
 
     /** @test */
@@ -173,8 +173,8 @@ class TransactionEntryTest extends BrowserKitTestCase
         $this->assertEquals(6000, $draft->getSubtotal());
         $this->assertEquals(5600, $draft->getTotal());
 
-        $this->see(formatRp($draft->getSubtotal()));
-        $this->see(formatRp($draft->getTotal()));
+        $this->see(format_rp($draft->getSubtotal()));
+        $this->see(format_rp($draft->getTotal()));
     }
 
     /** @test */
@@ -208,8 +208,8 @@ class TransactionEntryTest extends BrowserKitTestCase
         $this->see($draft->customer['name']);
         $this->see($draft->customer['phone']);
         $this->see($draft->notes);
-        $this->see(formatRp(10000));
-        $this->see(formatRp(3000));
+        $this->see(format_rp(10000));
+        $this->see(format_rp(3000));
         $this->seeElement('input', ['id' => 'save-transaction-draft']);
     }