Cooper Corp. has provided the following data concerning one of the products in its standard cost system. Variable manufacturing overhead is applied to products on the basis of direct labor hours. Standard Quantity Standard Price 7.40 liters 7.00 per liter 0.70 hours 21.70 per hour 0.70 hours $ 5.90 per hour Inputs Direct materials Direct labor Variable manufacturing overhead The company has reported the following actual results for the product for September: Actual output Raw materials purchased Actual cost of raw materials purchased 562,500 Raw materials used in production Actual direct labor hours Actual direct labor cost Actual variable overhead cost 9,600 units 75,000 liters 71,050 liters 6,410 hours $ 142,302 $34,614 Required: Show your work and compute the following: 1) Compute the materials purchase price variance for September. Base the variance on the quantity of materials purchased, not used. (Use the 4-column setup as seen in exercise 10- 8, page 474.) 2) Compute the materials quantity variance for September. 3) Compute the labor rate variance for September. 4) Compute the labor efficiency variance for September. 5) Compute the variable overhead rate variance for September. 6) Compute the variable overhead efficiency variance for September