Kropf Inc has provided the following data concerning one of the products in its standard cost system Vortable manufacturing overhead is applied to products on the basis of direct labor-hours. Inputs Direct materiais Direct labor Variable manufacturing overhead standard Quantity or Hours per Unit of Output 9.00 liter 0.40 hours 0.40 hours Standard Price or Rate 5 3.60 per liter $37.70 per hour $ 7.50 per hour The company has reported the following actual results for the product for September Actual output Rase materiais purchased Actual cost of raw materials purchased Raw materials used in production Actual direct labor-hour Actual direct labor coat Actual variable overhead coat 11.200 unita 102.600 liters 5896,500 100,320 liters 4.300 hours $170,302 $ 27, 414 a Compute the materials 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 e. Compute the variable overhead rate variance for September f. Compute the variable overhead efficiency variance for September (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (l.e., zero variance). Input all amounts as positive values.) a b C Materials price variance Materials quantity vanance Labor rate variance Labor efficiency variance Variable overhead rate variance Variable overhead efficiency variance d -D