Answer:
Variable overhead efficiency variance = $8,600 favorable
Step-by-step explanation:
Variable overhead efficiency variance is the difference between the actual time taken to achieve a given production output less the standard hours for same multiplied by the standard variable overhead rate
Variable overhead efficiency variance is determined as follows:
Hours
standard hours for actual output 16,800
Actual hours 14,800
Efficiency variance 2,000 favorable
× standard variable OH rate × $4.30
Variable overhead efficiency variance ($) $8,600 favorable