Raven Company applies overhead based on direct labor hours. The variable overhead standard is 10 hours at $20 per hour. During July, Raven spent $832,569 for variable overhead. 42,380 labor hours were used to produce 4,100 units. What is the variable overhead efficiency variance?

Multiple Choice

$13,065 favorab

$746,460 favorable

$6,159 unfavorable

$6,159 favorable