Waterway Company's standard materials cost per unit of output is $8.40 (2.10 pounds x $4.00). During July, the company purchases and uses 2.310 pounds of materials costing $12.243 in making 1.000 units of finished product, Compute the total, price, and quantity materials variances. (Round per unit values to 2 decimal places, eg. 52.75 and final answers to o decimal places, 68.52) Total materials variance $ Materials price variance $ Materials quantity variance $