Raven applies overhead based on direct labor hours. The variable overhead standard is 10.5 hours at $19.5 per hour. During July, Raven spent $841,700 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 favorable $746,460 favorable $15,290 favorable $15,290 unfavorable