Brief Exercise 23-4 Simba Company's standard materials cost per unit of output is $8.00 (2.00 poundsx $4.00). During July, the company purchases and uses 1,800 pounds of materials costing $9,540 in making 1,000 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 S Materials price variance Materials quantity variance