Question

# Marvel Parts, Inc., manufactures auto accessories. One of the company’s products is a set of seat...

Marvel Parts, Inc., manufactures auto accessories. One of the company’s 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 1,055 hours each month to produce 2,110 sets of covers. The standard costs associated with this level of production are:

 Total Per Set of Covers Direct materials \$ 51,273 \$ 24.30 Direct labor \$ 10,550 5.00 Variable manufacturing overhead (based on direct labor-hours) \$ 4,853 2.30 \$ 31.60

During August, the factory worked only 1,000 direct labor-hours and produced 2,100 sets of covers. The following actual costs were recorded during the month:

 Total Per Set of Covers Direct materials (6,800 yards) \$ 49,980 \$ 23.80 Direct labor \$ 10,920 5.20 Variable manufacturing overhead \$ 5,460 2.60 \$ 31.60

At standard, each set of covers should require 3.00 yards of material. All of the materials purchased during the month were used in production.

1. Compute the materials price and quantity variances for August. (Input all amounts as positive values. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e, zero variance).)

2. Compute the labor rate and efficiency variances for August. (Input all amounts as positive values. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e, zero variance).)

3. Compute the variable overhead rate and efficiency variances for August. (Input all amounts as positive values. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e, zero variance).)

#### Homework Answers

Answer #1

1. Compute the materials price and quantity variances for August

Material price variance = (8.1*6800-49980) = 5100 F

Material quantity variance = (2100*3-6800)*8.1 = 4050 U

2. Compute the labor rate and efficiency variances for August.

Labour rate variance = (10*1000-10920) = 920 U

Labour efficiency variance = (2100*.50-1000)*10 =500 F

3. Compute the variable overhead rate and efficiency variances for August.

Variable overhead rate variance = (4.6*1000-5460) = 860 U

Variable overhead efficiency variance = (2100*.50-1000)*4.60 = 230 F

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