diff --git a/erpnext/manufacturing/doctype/production_plan/production_plan.py b/erpnext/manufacturing/doctype/production_plan/production_plan.py
index f0392be01c..6e9d1fcfd8 100644
--- a/erpnext/manufacturing/doctype/production_plan/production_plan.py
+++ b/erpnext/manufacturing/doctype/production_plan/production_plan.py
@@ -312,9 +312,10 @@ class ProductionPlan(Document):
 				so_item.parent,
 				so_item.item_code,
 				so_item.warehouse,
-				(
-					(so_item.qty - so_item.work_order_qty - so_item.delivered_qty) * so_item.conversion_factor
-				).as_("pending_qty"),
+				so_item.qty,
+				so_item.work_order_qty,
+				so_item.delivered_qty,
+				so_item.conversion_factor,
 				so_item.description,
 				so_item.name,
 				so_item.bom_no,
@@ -337,6 +338,11 @@ class ProductionPlan(Document):
 
 		items = items_query.run(as_dict=True)
 
+		for item in items:
+			item.pending_qty = (
+				flt(item.qty) - max(item.work_order_qty, item.delivered_qty, 0) * item.conversion_factor
+			)
+
 		pi = frappe.qb.DocType("Packed Item")
 
 		packed_items_query = (