- $order_line->receive_qty * $order_line->taxfree_charge_price($po), $po->supplier_id, '', 0,
- $order_line->stock_id);
- update_average_material_cost($po->supplier_id, $order_line->stock_id, $order_line->price,
+ $order_line->taxfree_charge_value($po), $po->supplier_id, '', 0, $order_line->stock_id);
+ update_average_material_cost($po->supplier_id, $order_line->stock_id, $order_line->price,