I'm stuck! Here is what I have so far, help.

Make or Buy Decision:

Zee-Drive Ltd. is a computer manufacturer. One of the items they make is monitors. Zee-Drive has the opportunity to purchase 17,000 monitors from an outside supplier for $201 per unit. One of the company's cost-accounting interns prepared the following schedule of Zee-Drive's cost to produce 17,000 monitors:

Total cost of producing 17,000 monitors Unit cost

Direct materials $2,057,000 $121

Direct labor $1,156,000 68

Variable factory overhead $476,000 28

Fixed manufacturing overhead $476,000 28

Fixed non-manufacturing overhead$714,000 42

$4,879,000 $287

You are asked to look over the intern's estimate before the information is shared with members of management who will decide to continue to make the monitors or buy them. The company's controller believes that the estimate may be incorrect because it includes costs that are not relevant. If Zee-Drive buys the monitors, the direct labor force currently employed in producing the monitors will be terminated and there would be no termination costs incurred. There are no materials on hand and no commitments to suppliers to purchase materials, so all materials would need to be purchased to make the monitors. Variable overheads are avoidable if monitors are bought. Fixed manufacturing overhead costs would be reduced by $56,600, but non-manufacturing costs would remain the same if monitors are bought.

Fill in the differential analysis.

Make or Buy Decisions

Differential Analysis Report

Purchase price of 17,000 monitors $3,417,000

Direct materials $2,057,000

Direct labor $1,156,000

Overhead _____?______ ______?________

Differential income (loss) from making monitors

?

Replace or Keep Decision

Differential Analysis Report

Cost of replacing old machine:

Annual differential decrease in cost $

x number of years. 6

Total differential decrease in cost $ ____?_____

Proceeds from sale of present machine $158,400

Cost of new machine $790,500

Net differential (increase)/decrease in cost, six year total $ ____?_____