TB MC Qu. 11-21 (Static) Wings Incorporated manufactures machine parts for ... Wings Incorporated manufactures machine parts for aircraft engines. The CEO, Chucky Valters, was considering an offer from a subcontractor that would provide 2,400 units of product PQ107 for Valters for a price of $150,000. If Wings does not purchase these parts from the subcontractor it must produce them in-house with the following unit costs: 2736 Direct materials Cost per Unit $31 Direct labor Variable overhead 19 8 In addition to the above costs, if Wings produces part PQ107, it would have a retooling and design cost of $9,800. The relevant costs of producing 2,400 units of product PQ107 internally are: