diff --git a/src/components/pages/purchase/form/order/PurchaseOrderStaffApprovalForm.tsx b/src/components/pages/purchase/form/order/PurchaseOrderStaffApprovalForm.tsx
index 729b6782..a232347d 100644
--- a/src/components/pages/purchase/form/order/PurchaseOrderStaffApprovalForm.tsx
+++ b/src/components/pages/purchase/form/order/PurchaseOrderStaffApprovalForm.tsx
@@ -633,8 +633,18 @@ const PurchaseOrderStaffApprovalForm = ({
 
       formik.setFieldValue(`items.${idx}.qty`, numValue);
 
-      formik.setFieldValue(`items.${idx}.price`, '');
-      formik.setFieldValue(`items.${idx}.total_price`, '');
+      if (
+        formItem.price !== '' &&
+        formItem.price !== undefined &&
+        formItem.price !== null &&
+        numValue !== '' &&
+        numValue > 0
+      ) {
+        const calculatedTotal = Number(formItem.price) * Number(numValue);
+        formik.setFieldValue(`items.${idx}.total_price`, calculatedTotal);
+      } else if (numValue === '') {
+        formik.setFieldValue(`items.${idx}.total_price`, '');
+      }
     }
 
     if (field === 'price' || field === 'total_price') {
@@ -1184,8 +1194,10 @@ const PurchaseOrderStaffApprovalForm = ({
                 color='warning'
                 className='px-4'
                 onClick={() => {
-                  formik.setValues(formikInitialValues);
-                  formik.resetForm();
+                  if (type === 'add') {
+                    formik.setValues(formikInitialValues);
+                    formik.resetForm();
+                  }
                   setPurchaseOrderFormErrorMessage('');
                   onCancel?.();
                   onModalClose?.();