Swed Savet SSD Kropt incorporated has provided the following data concerning one of the products in standard cost system. Variable manufacturing ovis applied to products on the basis of direct labor hours. Standard Quantity or Inputs Hours per Unit of output standard Price or late Direct materials 8.10 liters Direct Labor 5 7.70 per liter 0.40 hours $20.70 per hour Variable manufacturing overhead 0.40 hours 5 6.60 per hour The company has reported the following actual results for the product for September Actual output 10.300 units Raw mater purchased 84.700 liters Actual raw materials purchased 667,500 Raw materials used in production 83,460 liters 3,840 hours Actual direct labor-hours $ 115,302 Actual direct labor cost $ 20,314 Actual variable overhead cost Required: 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 t. Compute the variable overhead officiency variance for September (Indicate the effect of each variance by selecting "F" for favorable. "U" for unfavorable, and "None" for no effect lezero variance). Input all amounts as positive values.) a. Material price variance b. Materiais quantity variance c Laborate variance d. Labor efficiency variance Variable overhead rate variance t Variable overhead efficiency variance