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Digital Light Corporation has just completed a major change in its quality control (QC) process. Previ- ously, products had been reviewed by QC inspectors at the end of each major process, and the com- pany’s 10 QC inspectors were charged as direct labor to the operation or job. In an effort to improve efficiency and quality, a computerized video QC system was purchased for $500,000. The system con- sists of a minicomputer, 15 video cameras, other peripheral hardware, and software. The new system uses cameras stationed by QC engineers at key points in the production process. Each time an operation changes or there is a new operation, the cameras are moved, and a new master picture is loaded into the computer by a QC engineer. The camera takes pictures of the units in process, and the computer com- pares them to the picture of a “good” unit. Any differences are sent to a QC engineer who removes the bad units and discusses the flaws with the production supervisors. The new system has replaced the 10 QC inspectors with two QC engineers.
The operating costs of the new QC system, including the salaries of the QC engineers, have been included as factory overhead in calculating the company’s plantwide manufacturing-overhead rate, which is based on direct-labor dollars. The company’s president is confused. His vice president ofproduction has told him how efficient the new system is. Yet there is a large increase in the overhead rate. The computation of the rate before and after automation is as follows:
Before After
|
Budgeted manufacturing overhead ............................................................... |
$3,800,000 |
$4,200,000 |
|
Budgeted direct-labor cost .......................................................................... |
2,000,000 |
1,400,000 |
|
Budgeted overhead rate .............................................................................. |
190% |
300% |
“Three hundred percent,” lamented the president. “How can we compete with such a high overhead rate?”
Required:
1. a. Define “manufacturing overhead,” and cite three examples of typical costs that would be included in manufacturing overhead.
b. Explain why companies develop predetermined overhead rates.
2. Explain why the increase in the overhead rate should not have a negative financial impact on the company.
3. Explain how management could change its overhead application system to eliminate confusion over product costs.
4. Discuss how an activity-based costing system might benefit Digital Light Corporation.
(CMA, adapted)