Fixed precision of rate field
diff --git a/erpnext/public/js/controllers/taxes_and_totals.js b/erpnext/public/js/controllers/taxes_and_totals.js
index 2149f6d..4e1288c 100644
--- a/erpnext/public/js/controllers/taxes_and_totals.js
+++ b/erpnext/public/js/controllers/taxes_and_totals.js
@@ -25,11 +25,11 @@
 			item.total_margin = item.price_list_rate + item.margin_rate_or_amount;
 		}
 
-		item.rate = flt(item.total_margin , 2);
+		item.rate = flt(item.total_margin , precision("rate", item));
 
 		if(item.discount_percentage){
 			discount_value = flt(item.total_margin) * flt(item.discount_percentage) / 100;
-			item.rate = flt((item.total_margin) - (discount_value), precision('rate'));
+			item.rate = flt((item.total_margin) - (discount_value), precision('rate', item));
 		}
 	},