Camila Company has set the following standard cost per unit for direct materials and direct labor. Direct materials (15 pounds @ $5 per pound) $ 75 Direct labor (3 hours @ $16 per hour) 48 During June the company incurred the following actual costs to produce 8,900 units. Direct materials (136,500 pounds @ $4.80 per pound) $ 655,200 Direct labor (30,800 hours @ $16.15 per hour) 497,420 AR = Actual Rate SR = Standard Rate AQ = Actual Quantity SQ = Standard Quantity AP = Actual Price SP = Standard Price (1) Compute the direct materials price and quantity variances. (2) Compute the direct labor rate variance and the direct labor efficiency variance.