Question

Troy Engines, Ltd., manufactures a variety of engines for use in heavy equipment. The company has always produced all of the necessary parts for its engines, including all of the carburetors. An outside supplier has offered to sell one type of carburetor to Troy Engines, Ltd., for a cost of $35 per unit. To evaluate this offer, Troy Engines, Ltd., has gathered the following information relating to its own cost of producing the carburetor internally: Per Unit 15,000 Units Per Year Direct materials $ 14 $ 210,000 Direct labor 10 150,000 Variable manufacturing overhead 3 45,000 Fixed manufacturing overhead, traceable 6 * 90,000 Fixed manufacturing overhead, allocated 9 135,000 Total cost $ 42 $ 630,000 *One-third supervisory salaries; two-thirds depreciation of special equipment (no resale value). Required: 1a. Assuming that the company has no alternative use for the facilities that are now being used to produce the carburetors, compute the total cost of making and buying the parts. 1b. Should the outside supplier’s offer be accepted? Accept Reject 2a. Suppose that if the carburetors were purchased, Troy Engines, Ltd., could use the freed capacity to launch a new product. The segment margin of the new product would be $150,000 per year. Compute the total cost of making and buying the parts. 2b. Should Troy Engines, Ltd., accept the offer to buy the carburetors for $35 per unit? Accept Reject

Answer 1

1a) Calculate total cost of making and buying :

	Make	Buy
Direct material	210000
Direct labour	150000
Variable manufacturing overhead	45000
Fixed manufacturing overhead traceable	90000	60000
Fixed manufacturing overhead allocated	135000	135000
Purchase cost (15000*35)		525000
Total cost	630000	720000

1b) No, Outside supplier's offer should not be accepted

2a) Calculate total cost of making and buying :

	Make	Buy
Direct material	210000
Direct labour	150000
Variable manufacturing overhead	45000
Fixed manufacturing overhead traceable	90000	60000
Fixed manufacturing overhead allocated	135000	135000
Opportunity cost	150000
Purchase cost (15000*35)		525000
Total cost	780000	720000

2b) Yes, Outside supplier's offer should be accepted