diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index c527a02376c..40ce8b6bc57 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -2183,10 +2183,10 @@ class AccountsController(TransactionBase):
 			for d in self.get("payment_schedule"):
 				if d.invoice_portion:
 					d.payment_amount = flt(
-						grand_total * flt(d.invoice_portion / 100), d.precision("payment_amount")
+						grand_total * flt(d.invoice_portion) / 100, d.precision("payment_amount")
 					)
 					d.base_payment_amount = flt(
-						base_grand_total * flt(d.invoice_portion / 100), d.precision("base_payment_amount")
+						base_grand_total * flt(d.invoice_portion) / 100, d.precision("base_payment_amount")
 					)
 					d.outstanding = d.payment_amount
 				elif not d.invoice_portion: