The accounting rate of return is calculated as:
A. The after-tax income divided by the total investment.
B. The after-tax income divided by the average investment.
C. The cash flows divided by the average investment.
D. The cash flows divided by the total investment.
E. The average investment divided by the after-tax income.
Answer:
Derby Inc. manufactures a product which contains a small part. The company has
always purchased this motor from a supplier for $125 each. Derby recently upgraded its
own manufacturing capabilities and now has enough excess capacity (including trained
workers) to begin manufacturing the motor instead of buying it. The company prepared
the following per unit cost projections of making the motor, assuming that
overhead is allocated to the part at the normal predetermined overhead rate of 150% of
direct labor cost.
The required volume of output to produce the motors will not require any incremental
fixed overhead. Incremental variable overhead cost is $21 per motor. What is the effect
on income if Derby decides to make the motors?
A. Income will decrease by $16 per unit.
B. Income will increase by $16 per unit.
C. Income will increase by $23 per unit.