Firestone adopts a standard cost system, which specifies that each brake repair uses a standard of 2 direct labor hours per brake repair and each technician's standard wage is $23.50 per hour. In April, technicians in Firestone spent a total of 8,890 direct labor hours (paid $190,000 ) and performed 4,780 brake repairs. Compute the direct labor rate variance. Multiple Choice $18,915 unfavorable $15,745 favorable $18,915 favorable