Answer:
b. $4,810 favorable
Step-by-step explanation:
Efficiency variance for variable overhead setup cost:
A. ((Actual units/Budget batch size)*Budget setup hours) * Budgeted overhead cost) = (((15700/265)*4.25)*$45 = $11,330.66
B . ((Actual units/Actual batch size)*Budget setup hours) * Budgeted overhead cost) = (((15700/325)*3)*$45 = $6,521.53
Efficiency variance for variable overhead setup cost = A - B
Efficiency variance for variable overhead setup cost = $11,330.66 - $6,521.53
Efficiency variance for variable overhead setup cost = $4.809.13 Favorable