Answer:
Making the part is more costly than purchasing from an outside supplier.
The company should discontinued the production and purchase from a third party.
Step-by-step explanation:
Variable cost:
Direct materials $ 4.80
Direct labor $ 4.30
Indirect labor $ 0.43
Utilities $ 0.40
Total Variable: $ 9.93
Total variable cost: 9.93 x 8,000 = 79,440
Avoidable fixed manufacturing cost:
depreciation 2,100 + property taxes 500 + insurance 900 = 3,500
Unavoidable cost:
depreciation 900 + property taxes 200 + insurance 600 = 1,500
The unvoidable cost are sunk cost. We should compare with the variable and avoidable cost:
Buy option: 80,000
Make option: 79,440 + 3,500 = 82,940
Differencial outcome: (2,940)
Making the part is more costly than purchasing from an outside supplier.
The company should discontinued the production and purchase from a third party.