Answer:
the efficiency variance for variable overhead setup costs is $4,810 favorable
Step-by-step explanation:
The computation of the efficiency variance for variable overhead setup costs is shown below;
= ((15,700 ÷ 265) × 4.25) × $45 - ((15,700 ÷ 325) × 3) × $45
= $11,330.6604 - $6,521.5384
= $4,809.12 favorable
= $4,810 favorable
hence, the efficiency variance for variable overhead setup costs is $4,810 favorable