Hassock Corp. produces woven wall hangings. It takes 3 hours of direct labor to produce a single wall hanging. Hassock's standard labor cost is $14 per hour. During August, Hassock produced 13,800 units and used 42,150 hours of direct labor at a total cost of $586,800. What is Hassock's labor efficiency variance for August? Multiple Choice $10,500 favorable. $7.200 unfavorable. $13,800 unfavorable. $6,600 favorable