Answer:
a) $3,525 F
Step-by-step explanation:
Overheads cost is the addition of the indirect material cost, indirect labour cost and indirect expenses. Overhead that changes with the level of activity are called variable overhead costs, example includes cost fueling machines in factory.
Variable overhead efficiency variance: A variance is the difference between a standard cost and the actual cost. Variable overhead effeciency variance aims to determine the savings or extra cost incurred on variable overhead as a result of workers being faster or slower that expeceted.
To calculate this variance, we do as follows:
Hours
85 connectors should have taken(85 ×13) 1,105
but did take (i.e actual hours) 400
Efficiency variance in hours 705 F
Standard variable overhead rate/ hr (6500/1300 ) $5
Variable overhead efficiency variance $3,525 F
Note ; The standard rate per hour = Budgeted Cost/Budgeted hours
= $6500/ 1,300 hours.
There were savings in the cost because the workers spent less time (400 hours) to produce the actual units of connectors thatn the expected hours given 1,105 hours.