The following information relates to production activities of Mercer Manufacturing for the year. Actual direct materials used 17,300 pounds at $4.70 per pound Actual direct labor used 17,935 hours at $32 per hour Actual units produced 32,600 Standard quantity and price per unit for direct materials 0.50 pound at $4.65 per pound Standard quantity and rate per unit for direct labor 0.50 hour at $33 per hour AR = Actual Rate SR = Standard Rate AQ = Actual Quantity SQ =