Use the following data to find the direct labor rate variance if the company produced 3,500 units during the period. Direct labor standard (4 hrs. @ $7.10/hr.) Actual hours worked Actual rate per hour $ 28.40 per unit 12,350 $ 7.70 O $7,410 unfavorable. O $8,400 unfavorable. $8,400 favorable. $11,715 favorable. $7,410 favorable