diff --git a/erpnext/selling/page/point_of_sale/pos_item_cart.js b/erpnext/selling/page/point_of_sale/pos_item_cart.js
index c23a6ad..62fc416 100644
--- a/erpnext/selling/page/point_of_sale/pos_item_cart.js
+++ b/erpnext/selling/page/point_of_sale/pos_item_cart.js
@@ -356,7 +356,7 @@
 				onchange: function() {
 					if (this.value || this.value == 0) {
 						const frm = me.events.get_frm();
-						frappe.model.set_value(frm.doc.doctype, frm.doc.name, 'additional_discount_percentage', this.value);
+						frappe.model.set_value(frm.doc.doctype, frm.doc.name, 'additional_discount_percentage', parseFloat(this.value));
 						me.hide_discount_control(this.value);
 					}
 				},
@@ -948,4 +948,4 @@
 		show ? this.$component.removeClass('d-none') : this.$component.addClass('d-none');
     }
     
-}
\ No newline at end of file
+}