Answer:
$3,920 favorable
Explanation:
For computing volume variance first we have to find out the overhead rate which is shown below:
Overhead rate is
= $78,400 ÷ 4,000 machine hours
= $19.6 per machine hour
And, the
Volume variance is
= (Normal capacity - standard hour allowed) × overhead rate
= (4,000 machine hours - 4,200 machine hours) × $19.6
= $3,920 favorable
We simply applied the above formula so that the volume variance could come