diff --git a/src/controllers/08-credit-note-controller.ts b/src/controllers/08-credit-note-controller.ts
index ad29da1..8c66ac2 100644
--- a/src/controllers/08-credit-note-controller.ts
+++ b/src/controllers/08-credit-note-controller.ts
@@ -323,16 +323,15 @@ export class CreditNoteController extends Controller {
         (v) => v.workStatus === RequestWorkStatus.Completed,
       ).length;
 
-      const price = c.request.quotation.agentPrice ? "price" : "agentPrice";
+      const price =
+        c.productService.pricePerUnit -
+        c.productService.discount / c.productService.amount +
+        c.productService.vat / c.productService.amount;
 
       if (serviceChargeStepCount && successCount) {
-        return (
-          a +
-          c.productService.product[price] -
-          c.productService.product.serviceCharge * successCount
-        );
+        return a + price - c.productService.product.serviceCharge * successCount;
       }
-      return a + c.productService.product.price;
+      return a + price;
     }, 0);
 
     this.setStatus(HttpStatus.CREATED);
@@ -457,16 +456,15 @@ export class CreditNoteController extends Controller {
         (v) => v.workStatus === RequestWorkStatus.Completed,
       ).length;
 
-      const price = c.request.quotation.agentPrice ? "price" : "agentPrice";
+      const price =
+        c.productService.pricePerUnit -
+        c.productService.discount / c.productService.amount +
+        c.productService.vat / c.productService.amount;
 
       if (serviceChargeStepCount && successCount) {
-        return (
-          a +
-          c.productService.product[price] -
-          c.productService.product.serviceCharge * successCount
-        );
+        return a + price - c.productService.product.serviceCharge * successCount;
       }
-      return a + c.productService.product.price;
+      return a + price;
     }, 0);
 
     const record = await prisma.creditNote.update({