The following standards for variable manufacturing overhead have been established for a company that makes only one product: Standard hours per unit of output 6.4 hours Standard variable overhead rate $12.80 per hour The following data pertain to operations for the last month: Actual hours 2,650 hours Actual total variable manufacturing overhead cost $34,570 Actual output 150 units What is the variable overhead efficiency variance for the month

See below

Explanation:

Given the following;

Standard hours per unit of output 6.4 hours

Standard variable overhead rate $12.80 per hour

Actual hours 2,650 hours

Actual output 150 units

To calculate the variable overhead efficiency variance, we will use the formula below;

Variable overhead efficiency variance

= (Standard quantity - Actual quantity) × Standard rate

Standard quantity = 150 units × 6.4 = 960

Variable overhead efficiency variance

= (960 - 2,650) × $12.80

= $21,632 unfavourable

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