Answer:
Variable manufacturing overhead rate variance= $1,980 favorable
Explanation:
Giving the following information:
Actual level of activity 9,900 machine-hours
Standard variable manufacturing overhead rate $6.30 per machine-hour
Actual total variable manufacturing overhead $60,390
To calculate the variable overhead rate variance, we need to use the following formula:
Variable manufacturing overhead rate variance= (standard rate - actual rate)* actual quantity
Actual rate= 60,390/9,900= $6.1
Variable manufacturing overhead rate variance= (6.3 - 6.1)*9,900
Variable manufacturing overhead rate variance= $1,980 favorable