Adriana Corporation manufactures football equipment. In planning
for next year, the managers want to understand the relation between
activity and overhead costs. Discussions with the plant supervisor
suggest that overhead seems to vary with labor-hours,
machine-hours, or both. The following data were collected from last
year's operations.
Month | Labor-Hours | Machine-Hours | Overhead Costs | ||||||
1 | 720 | 1,364 | $ | 102,770 | |||||
2 | 720 | 1,405 | 103,717 | ||||||
3 | 680 | 1,516 | 109,813 | ||||||
4 | 735 | 1,463 | 108,269 | ||||||
5 | 780 | 1,584 | 116,159 | ||||||
6 | 755 | 1,577 | 114,479 | ||||||
7 | 740 | 1,387 | 106,942 | ||||||
8 | 720 | 1,301 | 102,073 | ||||||
9 | 715 | 1,462 | 106,467 | ||||||
10 | 795 | 1,554 | 113,043 | ||||||
11 | 675 | 1,286 | 101,021 | ||||||
12 | 720 | 1,610 | 114,305 | ||||||
Required:
a. Use the high-low method to estimate the fixed and variable portions of overhead costs based on machine-hours.
b. Managers expect the plant to operate at a monthly average of 1,700 machine-hours next year. What are the estimated monthly overhead costs, assuming no inflation?
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