Answer: -882
Step-by-step explanation:
A variable overhead efficiency variance is simply defined as the actual labor hours less the budgeted labor hours which is then multiplied by the hourly rate for the standard variable overhead. It should be note that the standard variable overhead consist of the indirect labor costs like the security and the shop foreman.
Bases on the explanation above, the variable overhead efficiency will be:
= [(8800 × 0.40) - 3700] × 4.90
= -882
This is an unfavorable variance which means that the number of actual hours worked is more than the budgeted hours.