App8A-121
103. Nova Corporation produces a single product and uses a standard cost system to help
control costs. Overhead is applied to production on the basis of standard machine-hours.
According to the company’s flexible budget, the following overhead costs should be incurred at
an activity level of 18,000 machine-hours (the denominator activity level chosen for the current
year):
Variable overhead costs $45,000
Fixed overhead costs 108,000
Total overhead costs $153,000
During the current year, the following operating results were recorded:
Actual machine-hours worked 15,000
Standard machine-hours allowed 16,000
Actual variable overhead cost incurred $38,000
Actual fixed manufacturing overhead cost incurred $107,100
At the end of the year, the company’s Manufacturing Overhead account showed total debits for
actual overhead costs of $145,100 and total credits of $136,000 for overhead applied. The
difference ($9,100) represents under-applied overhead, the cause of which management would
like to know.
Required:
a. Compute the predetermined overhead rate that would have been used during the year,
showing separately the variable and fixed components of the rate.
b. Show how the $136,000 of overhead actually applied was computed.
c. Analyze the $9,100 under-applied overhead figure in terms of the variable overhead rate and
efficiency variances and the fixed manufacturing overhead budget and volume variances.