Answer:
The decision should be to make the part
Step-by-step explanation:
Variable cost of manufacturing = 15000x4 = 60000
Fixed cost of manufacturing = 15000 x 2 = 30000
Purchase cost = 15000x5 = 75000
Total annual cost of making = 60000 + 30000 = $90000
Total annual cost of buying is 30000 + 75000 = $105000
90000 - 105,000 = -15000
This shows that manson's cost savings would decrease by -15000
So instead of buying, it is better to make.