diff --git a/production.py b/production.py
index 58b68aa..8742566 100644
--- a/production.py
+++ b/production.py
@@ -299,27 +299,6 @@ class Production(metaclass=PoolMeta):
         if shipments:
             InternalShipment.assign_try(shipments)
 
-
-    @classmethod
-    def set_cost(cls, productions):
-        pool = Pool()
-        Move = pool.get('stock.move')
-        super().set_cost(productions)
-        to_save = []
-        for production in productions:
-            if not production.purchase_request:
-                continue
-
-            purchase = production.purchase_request.purchase
-            amount = purchase.untaxed_amount
-            for output in production.outputs:
-                output.unit_price += round_price(
-                    Decimal(float(amount)/output.internal_quantity))
-                to_save.append(output)
-
-        Move.save(to_save)
-
-
     def get_cost(self, name):
         price = super().get_cost(name)
         purchase = self.purchase_request and self.purchase_request.purchase
@@ -329,7 +308,6 @@ class Production(metaclass=PoolMeta):
         return price + purchase.untaxed_amount
 
 
-
 # TODO: Internal shipment should be updated each time outputs are changed
 
 class Purchase(metaclass=PoolMeta):
diff --git a/tests/scenario_production_subcontract.rst b/tests/scenario_production_subcontract.rst
index 2996103..902f982 100644
--- a/tests/scenario_production_subcontract.rst
+++ b/tests/scenario_production_subcontract.rst
@@ -338,4 +338,4 @@ Make a subcontract production::
     'done'
     >>> output, = production.outputs
     >>> output.unit_price
-    Decimal('212.5000')
+    Decimal('112.5000')