Chapter 03 – Appendix A The Predetermined Overhead Rate and Capacity
3A-20
25. The management of Gruwell Corporation would like to investigate the possibility of
basing its predetermined overhead rate on activity at capacity rather than on the estimated
amount of activity for the year. The company’s controller has provided an example to
illustrate how this new system would work. In this example, the allocation base is machine-
hours and the estimated amount of the allocation base for the upcoming year is 48,000
machine-hours. In addition, capacity is 53,000 machine-hours and the actual activity for the
year is 47,700 machine-hours. All of the manufacturing overhead is fixed and is $1,144,800
per year. For simplicity, it is assumed that this is the estimated manufacturing overhead for
the year as well as the manufacturing overhead at capacity and the actual amount of
manufacturing overhead for the year. Job J42O, which required 40 machine-hours, is one of
the jobs worked on during the year.
Required:
a. Determine the predetermined overhead rate if the predetermined overhead rate is based on
the estimated amount of the allocation base.
b. Determine how much overhead would be applied to Job J42O if the predetermined
overhead rate is based on estimated amount of the allocation base.
c. Determine the underapplied or overapplied manufacturing overhead for the year if the
predetermined overhead rate is based on the estimated amount of the allocation base.
d. Determine the predetermined overhead rate if the predetermined overhead rate is based on
the amount of the allocation base at capacity.
e. Determine how much overhead would be applied to Job J42O if the predetermined
overhead rate is based on the amount of the allocation base at capacity.
f. Determine the underapplied or overapplied manufacturing overhead for the year if the
predetermined overhead rate is based on the amount of the allocation base at capacity.