diff --git a/resources/views/pages/pdfs/InvoiceHelpers.php b/resources/views/pages/pdfs/InvoiceHelpers.php
deleted file mode 100644
index ae407479..00000000
--- a/resources/views/pages/pdfs/InvoiceHelpers.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-
-function calculateSubtotal($po_order_transaction, $currencyRate) {
-    $subtotal = "0";
-    foreach ($po_order_transaction->transactionDetails as $transaction_detail) {
-        $unitPrice = bcdiv((string)$transaction_detail->price, (string)$currencyRate, 5);
-        $itemTotal = bcmul($unitPrice, (string)$transaction_detail->quantity, 5);
-        $subtotal = bcadd($subtotal, $itemTotal, 5);
-    }
-    return $subtotal;
-}
-
-function getVoucherDiscount($voucher_redemption) {
-    return $voucher_redemption ? bcmul((string)$voucher_redemption->value, "-1", 2) : "0";
-}
-function roundUp($number, $decimals)
-{
-    $factor = pow(10, $decimals);
-    if ($number > 0) {
-        return ceil($number * $factor) / $factor;
-    } else {
-        return floor($number * $factor) / $factor;
-    }
-}
diff --git a/resources/views/pages/pdfs/deliver_order.blade.php b/resources/views/pages/pdfs/deliver_order.blade.php
index 75d0d936..c59cc5a9 100644
--- a/resources/views/pages/pdfs/deliver_order.blade.php
+++ b/resources/views/pages/pdfs/deliver_order.blade.php
@@ -1,4 +1,3 @@
-@include('./InvoiceHelpers')
 @extends('layouts.base_pdf')
 @section('inner_content')
     <br>
@@ -83,8 +82,8 @@
         </thead>
         <tbody>
         @php
-            $subtotal = calculateSubtotal($po_order_transaction, $transaction->currency_rate);
-            $voucherDiscount = getVoucherDiscount($voucher_redemption);
+            $subtotal = calculateDoSubtotal($po_order_transaction, $transaction->currency_rate);
+            $voucherDiscount = getDoVoucherDiscount($voucher_redemption);
             $displayedSubtotal = 0;
         @endphp
 
@@ -111,7 +110,7 @@
         </tbody>
         <tfoot>
         @php
-            $voucherDiscount = getVoucherDiscount($voucher_redemption);
+            $voucherDiscount = getDoVoucherDiscount($voucher_redemption);
             $subtotalWithDiscount = bcsub($subtotal, $voucherDiscount, 5); // Use bcsub to subtract
         @endphp
         <tr class="subtotal">
@@ -149,7 +148,7 @@
         <tr>
             <td colspan="4"></td>
             <td class="right middle">Adjustment</td>
-            <td class="right middle">{{ roundUp($discrepancy,2)  }}</td>
+            <td class="right middle">{{ roundUpDo($discrepancy,2)  }}</td>
         </tr>
         <tr>
             <td colspan="4"></td>
@@ -168,4 +167,28 @@
             </tr>
         </table>
     </htmlpagefooter>
+    @php
+        function calculateDoSubtotal($po_order_transaction, $currencyRate) {
+            $subtotal = "0";
+            foreach ($po_order_transaction->transactionDetails as $transaction_detail) {
+                $unitPrice = bcdiv((string)$transaction_detail->price, (string)$currencyRate, 5);
+                $itemTotal = bcmul($unitPrice, (string)$transaction_detail->quantity, 5);
+                $subtotal = bcadd($subtotal, $itemTotal, 5);
+            }
+            return $subtotal;
+        }
+
+        function getDoVoucherDiscount($voucher_redemption) {
+            return $voucher_redemption ? bcmul((string)$voucher_redemption->value, "-1", 2) : "0";
+        }
+        function roundUpDo($number, $decimals) {
+        $factor = pow(10, $decimals);
+        if ($number > 0) {
+            return ceil($number * $factor) / $factor;
+        } else {
+            return floor($number * $factor) / $factor;
+        }
+    }
+
+    @endphp
 @endsection
diff --git a/resources/views/pages/pdfs/invoice.blade.php b/resources/views/pages/pdfs/invoice.blade.php
index cc12d8e6..066fb971 100644
--- a/resources/views/pages/pdfs/invoice.blade.php
+++ b/resources/views/pages/pdfs/invoice.blade.php
@@ -1,4 +1,3 @@
-@include('./InvoiceHelpers')
 @extends('layouts.base_pdf')
 
 @section('inner_content')
diff --git a/resources/views/pages/pdfs/purchase_order.blade.php b/resources/views/pages/pdfs/purchase_order.blade.php
index 63ab0db6..e9d1c8fd 100644
--- a/resources/views/pages/pdfs/purchase_order.blade.php
+++ b/resources/views/pages/pdfs/purchase_order.blade.php
@@ -1,4 +1,3 @@
-@include('./InvoiceHelpers')
 @extends('layouts.base_pdf')
 @section('inner_content')
     <br>
@@ -91,8 +90,8 @@
         </thead>
         <tbody>
         @php
-            $subtotal = calculateSubtotal($po_order_transaction, $transaction->currency_rate);
-            $voucherDiscount = getVoucherDiscount($voucher_redemption);
+            $subtotal = calculatePoSubtotal($po_order_transaction, $transaction->currency_rate);
+            $voucherDiscount = getPoVoucherDiscount($voucher_redemption);
             $displayedSubtotal = 0;
         @endphp
 
@@ -119,7 +118,7 @@
         </tbody>
         <tfoot>
         @php
-            $voucherDiscount = getVoucherDiscount($voucher_redemption);
+            $voucherDiscount = getPoVoucherDiscount($voucher_redemption);
             $subtotalWithDiscount = bcsub($subtotal, $voucherDiscount, 5); // Use bcsub to subtract
         @endphp
         <tr class="subtotal">
@@ -157,7 +156,7 @@
         <tr>
             <td colspan="4"></td>
             <td class="right middle">Adjustment</td>
-            <td class="right middle">{{ roundUp($discrepancy,2)  }}</td>
+            <td class="right middle">{{ roundUpPo($discrepancy,2)  }}</td>
         </tr>
         <tr>
             <td colspan="4"></td>
@@ -176,4 +175,28 @@
             </tr>
         </table>
     </htmlpagefooter>
+    @php
+        function calculatePoSubtotal($po_order_transaction, $currencyRate) {
+            $subtotal = "0";
+            foreach ($po_order_transaction->transactionDetails as $transaction_detail) {
+                $unitPrice = bcdiv((string)$transaction_detail->price, (string)$currencyRate, 5);
+                $itemTotal = bcmul($unitPrice, (string)$transaction_detail->quantity, 5);
+                $subtotal = bcadd($subtotal, $itemTotal, 5);
+            }
+            return $subtotal;
+        }
+
+        function getPoVoucherDiscount($voucher_redemption) {
+            return $voucher_redemption ? bcmul((string)$voucher_redemption->value, "-1", 2) : "0";
+        }
+        function roundUpPo($number, $decimals) {
+        $factor = pow(10, $decimals);
+        if ($number > 0) {
+            return ceil($number * $factor) / $factor;
+        } else {
+            return floor($number * $factor) / $factor;
+        }
+    }
+
+    @endphp
 @endsection