Answer:
variable overhead efficiency variance= $22,780 unfavorable
Explanation:
Giving the following information:
Standard hours per unit of output 7.0 hours
Standard variable overhead rate $ 13.40 per hour
Actual hours 2,725 hours
The actual output of 150 units
To calculate the variable overhead efficiency variance, we need to use the following formula:
variable overhead efficiency variance= (Standard Quantity - Actual Quantity)*Standard rate
Standard quantity= 150*7= 1,050 hours
variable overhead efficiency variance= (1,050 - 2,750)*13.4
variable overhead efficiency variance= $22,780 unfavorable