Brief Exercise 15-4 Blue Companys standard materials cost per unit of output is $8 (2 pounds x $4). During July, the company purchases and uses 3,000 pounds of materials costing $12,150 in making 1,400 units of finished product. Compute the total, price, and quantity materials variances. (Round per unit values to 2 decimal places, e.g. 52.75 and final answers to 0 decimal places, e.g. 52.) Total materials variance $ Materials price variance $ Materials quantity variance