A company provided the following dota concerning one of the products in its standard cost system. Variable manufacturing overhead 3 is applied to products on the basis of direct labor hours Standard Quantity or Hours per unit o Input Output Standard te Direct materials 8.20 liter $ 7.00 per liter Direct labor 0.50 hours 19.10 per hour Variable manufacturing overhead 0.50 hours $6.70 per hour The company has reported the following actual results for the product for September Actual output 10,400 units av materiale purchased 07.00 liters Actual cost of raw material purchased 5.690, 500 aw materials used in production 5,310 liter Actual direct labor-hours 4,700 hours Actual direct labor coat 5. 145.302 Actual variable overhead coat $ 27.414 Required: a. Compute the materiais price variance for September b. Compute the materials quantity variance for September c. Compute the labor rate variance for September d. Compute the labor efficiency variance for September (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (le, zero variance), Input all amounts as positive values.) a Materials price variance b. Materials quantity variance c Labor rate variance d. Labor efficiency variance