Sheffield Company's standard materials cost per unit of output is $15 (3 pounds x $5). During July, the company purchases and uses 4.400 pounds of materials costing $22,308 in making 1.400 units of finished product. Compute the total, price and quantity materials variances. (Round per unit values to 2 decimal places, eg. 5275 and final answers to o decimal places, es. 52) $ Total materiais variance Materials price variance $ Materials quantity variance $