Answer:
1 ) Variable Overhead Rate Variance = ( SR - AR )* AH
= ( $21 - $20) 3,500
= $3,500 Favorable
2 ) Labor Rate = ( SR - AR )* AH
= ( $24 - $24.9) 2,290
=$2,061 U
Explanation:
TOTAL = Standard cost - Incurred cost
Standard Cost = $70,000 + $4,550
= $74,550
Standard Rate = $74,550 / 3,550
= $21
cost incurred = AR * machine hours
cost per machine hour = $70,000/3,500
=$20
2) Labor Rate = ( SR - AR )* AH
= ( $24 - $24.9) 2,290
=$2,061 U
AR = $57,021/2,290 = $24.9
AR = Actual Rate
SR = Standard Rate
AH = Actual hours