Answer:
variable overhead efficiency variance= $27,900 favorable
Explanation:
Giving the following information:
Standard DL hours per tub= 5 hours
Standard variable overhead rate per DL hour= ​$6.00
Actual DL hours​= 2,850
Actual tubs produced= ​1,500
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= 1,500units*5= 7,500
variable overhead efficiency variance= (7,500 - 2,850)*6
variable overhead efficiency variance= $27,900 favorable