Make or BuyTerry Inc. manufactures machine parts for aircraft engines. CEO Bucky Walters is considering an offer from a subcontractor to provide 2,500 units of product OP89 for $155,000. If Terry does not purchase these parts from the subcontractor, it must continue to produce them in-house with these costs:

Cost per UnitDirect materials$28Direct labor19Variable overhead17Allocated fixed overhead3

Required:

1. What is the relevant cost per unit to make the product internally?

2. What is the estimated increase or decrease in short-term operating profit of producing the product internally versus purchasing the product from a supplier?