An outside supplier has offered to make and sell the part to the company for $23.30 each. If this offer is
accepted, the supervisor’s salary and all of the variable costs, including direct labor, can be avoided. The
special equipment used to make the part was purchased many years ago and has no salvage value or other
use. The allocated general overhead represents fixed costs of the entire company. If the outside supplier’s
offer were accepted, only $5,000 of these allocated general overhead costs would be avoided. In addition, the
space used to produce part E44 would be used to make more of one of the company’s other products,
generating an additional segment margin of $21,000 per year for that product.
What would be the impact on the company’s overall net operating income of buying part E44 from the outside
supplier?
A) Net operating income would increase by $21,000 per year.
B) Net operating income would increase by $18,800 per year.
C) Net operating income would decrease by $123,000 per year.
D) Net operating income would decrease by $165,000 per year.
61. Part A42 is used by Elgin Corporation to make one of its products. A total of 16,000 units of this part are
produced and used every year. The company’s Accounting Department reports the following costs of
producing the part at this level of activity:
Direct materials ……………………………….
Direct labor ……………………………………..
Variable manufacturing overhead ………
Supervisor’s salary …………………………..
Depreciation of special equipment ……..
Allocated general overhead……………….
An outside supplier has offered to make the part and sell it to the company for $30.40 each. If this offer is
accepted, the supervisor’s salary and all of the variable costs, including the direct labor, can be avoided. The
special equipment used to make the part was purchased many years ago and has no salvage value or other
use. The allocated general overhead represents fixed costs of the entire company, none of which would be
avoided if the part were purchased instead of produced internally. In addition, the space used to make part
Direct materials (18,000 units × $2.20 per unit) ……………………….
Direct labor (18,000 units × $5.40 per unit) ……………………………..
Variable overhead (18,000 units × $8.00 per unit) ……………………
Depreciation of special equipment (not relevant) ……………………..
Allocated general overhead (avoidable only) …………………………..
Opportunity cost ………………………………………………………………….
Total relevant cost to make …………………………………………………..
Total relevant cost to make …………………………………………………..
Total cost to buy (18,000 units × $23.30 per unit) …………………….
Higher cost to make …………………………………………………………….