Question

In: Accounting

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 630 hours each month to produce 2,100 sets of covers. The standard costs associated with this level of production are:

Total Per Set
of Covers
Direct materials $ 38,640 $ 18.40
Direct labor $ 6,300 3.00
Variable manufacturing overhead (based on direct labor-hours) $ 3,150 1.50
$ 22.90

During August, the factory worked only 500 direct labor-hours and produced 2,000 sets of covers. The following actual costs were recorded during the month:

Total Per Set
of Covers
Direct materials (5,000 yards) $ 36,000 $ 18.00
Direct labor $ 6,400 3.20
Variable manufacturing overhead $ 4,400 2.20
$ 23.40

At standard, each set of covers should require 2.3 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.

Thanks for your help!

Solutions

Expert Solution

1. Material price variance = (Standard rate - Actual Rate) * Actual Quantity

= ($8 - $7.2) * 5000

= $4000 (Favorable)

Material Quantity variance = (Standard Quantity - Actual Quantity) * Standard Rate

= (4600 - 5000) * $8

= $3200 (Unfavorable)

2. Labour Rate Variance = (Standard rate - Actual Rate) * Actual Hours

= ($10 - $12.8) * 500

= $1400 (Unfavorable)

Labour Efficiency variance = (Standard Hours - Actual Hours) * Standard Rate

= (600 - 500) * $10

= $1000 (Favorable)

3. Variable Overhead Rate Variance = (Standard rate - Actual Rate) * Actual Hours

= ($5 - $8.8) * 500

= $1900 (Unfavorable)

Variable Overhead Efficiency variance = (Standard Hours - Actual Hours) * Standard Rate

= (600 - 500) * $5

= $500 (Unfavorable)

Working Notes:

1. Actual rate for material = $36000 / 5000 = $7.2

2. Standard quantity of material = 2.3 * 2000 = 4600

3. Standard rate for material = $38640 / (2.3*2100) = $8

4. Standard hours = 630 / 2100 * 2000 = 600 hours

5. Standard labour rate = $6300 / 630 = $10 per hour

6. Actual labor rate = $0 / 1080 = $9.25 per hour

7. Standard Overhead Rate = $3150 / 630 = $5 per hour

8. Actua overhead rate = $4400 / 500 = $8.80


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