Fortes Inc. 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 or Hours per Unit of Output 8.1 ounces 0.6 hours Standard Price or Rate 0.6 hours $ 6.20 per ounce $20.80 per hour $ 4.50 per hour Inputs Direct materials Direct labor Variable manufacturing overhead The company has reported the following actual results for the product for April: Actual output Raw materials purchased Actual cost of raw materials purchased Raw materials used in production Actual direct labor-hours Actual direct labor cost Actual variable overhead cost Required: a. Compute the materials price variance for April. b. Compute the materials quantity variance for April. c. Compute the labor rate variance for April. d. Compute the labor efficiency variance for April. e. Compute the variable overhead rate variance for April. 5,700 units 48,300 ounces $280,560 46,200 ounces 3,160 hours $ 68,850 $ 13,405 f. Compute the variable overhead efficiency variance for April. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values.)