Marvel Parts, Incorporated, manufactures auto accessories. One of the companys products is a set of seat covers that can be adjusted to fit nearly any small car. The company has a standard cost system in use for all of its products. According to the standards that have been set for the seat covers, the factory should work 990 hours each month to produce 1,980 sets of covers. The standard costs associated with this level of production are:

TotalPer Set of CoversDirect materials$ 39,798$ 20.10Direct labor$ 5,9403.00Variable manufacturing overhead (based on direct labor-hours)$ 3,1681.60 $ 24.70

During August, the factory worked only 1,000 direct labor-hours and produced 2,200 sets of covers. The following actual costs were recorded during the month:

TotalPer Set of CoversDirect materials (7,400 yards)$ 40,700$ 18.50Direct labor$ 8,1403.70Variable manufacturing overhead$ 3,9601.80 $ 24.00

At standard, each set of covers should require 3.0 yards of material. All of the materials purchased during the month were used in production.

Required:

1. Compute the materials price and quantity variances for August.
2. Compute the labor rate and efficiency variances for August.
3. Compute the variable overhead rate and efficiency variances for August.

Note: Do not round intermediate calculations. 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.

Please also explain how to get answer so I can learn the concepts. Thank you!