A manufacturing company that has only one product has established the following standards for its variable manufacturing overhead. The company uses machine-hours as its measure of activity. Standard Hours per Unit of Output 8.1 machine hours
Standard Variable Overhead Rate $14.30 per machine hour
The following data pertain to operations for the last month:
Actual Hours 1,700 machine hours
Actual Total Variable Overhead Cost $24,905
Actual Output 200 units
What is the variable overhead efficiency variance for the month?
a. $567 favourable.
b. $1,144 unfavourable.
c. $1,172 favourable.
d. $1,172 unfavourable.