diff --git a/erpnext/manufacturing/doctype/routing/routing.js b/erpnext/manufacturing/doctype/routing/routing.js
index 33a313e..b480c70 100644
--- a/erpnext/manufacturing/doctype/routing/routing.js
+++ b/erpnext/manufacturing/doctype/routing/routing.js
@@ -17,7 +17,7 @@
 	},
 
 	calculate_operating_cost: function(frm, child) {
-		const operating_cost = flt(flt(child.hour_rate) * flt(child.time_in_mins) / 60, 2);
+		const operating_cost = flt(flt(child.hour_rate) * flt(child.time_in_mins) / 60, precision("operating_cost", child));
 		frappe.model.set_value(child.doctype, child.name, "operating_cost", operating_cost);
 	}
 });
diff --git a/erpnext/manufacturing/doctype/routing/routing.py b/erpnext/manufacturing/doctype/routing/routing.py
index 1c76634..b207906 100644
--- a/erpnext/manufacturing/doctype/routing/routing.py
+++ b/erpnext/manufacturing/doctype/routing/routing.py
@@ -20,7 +20,8 @@
 		for operation in self.operations:
 			if not operation.hour_rate:
 				operation.hour_rate = frappe.db.get_value("Workstation", operation.workstation, 'hour_rate')
-			operation.operating_cost = flt(flt(operation.hour_rate) * flt(operation.time_in_mins) / 60, 2)
+			operation.operating_cost = flt(flt(operation.hour_rate) * flt(operation.time_in_mins) / 60,
+					operation.precision("operating_cost"))
 
 	def set_routing_id(self):
 		sequence_id = 0