Koontz Company manufactures a number of products. The standards
relating to one of these products are shown below, along with
actual cost data for May.
Standard Cost per Unit
Actual Cost per Unit
Direct materials:
Standard: 1.80 feet at $1.20 per foot
$
2.16
Actual: 1.75 feet at $1.60 per foot
$ 2.80
Direct labor:
Standard: 0.90 hours at $16.00 per hour
14.40
Actual: 0.95 hours at $15.40 per hour
14.63
Variable overhead:
Standard: 0.90 hours at $5.60 per hour
5.04
Actual: 0.95 hours at $5.00 per hour
4.75
Total cost per unit $
21.60
$ 22.18
Excess of actual cost over standard cost per unit
$
0.58
The production superintendent was pleased when he saw this report
and commented: “This $0.58 excess cost is well within the 5 percent
limit management has set for acceptable variances. It's obvious
that there's not much to worry about with this product."
Actual production for the month was 10,500 units. Variable overhead
cost is assigned to products on the basis of direct labor-hours.
There were no beginning or ending inventories of materials.
Required:
1. Compute the following variances for May:
a. Materials price and quantity variances.
b. Labor rate and efficiency variances.
c. Variable overhead rate and efficiency variances.
2. How much of the $0.58 excess unit cost is traceable to each of
the variances computed in (1) above.
3. How much of the $0.58 excess unit cost is traceable to apparent
inefficient use of labor time?
Material Price Variance = (Standard Price – Actual Price)*Actual Quantity
= (1.20-1.60)*10500*1.8
= $7,560 U
Material Quantity Variance = (Standard Quantity – Actual Quantity)*Standard Price
= (1.80-1.75)*10,500*1.20
= $630 F
b.Labor Rate variance = (Standard Rate – Actual Rate)*Actual Hours
= (16-15.40)*0.95*10,500
= $5,985 F
Efficiency = (Standard Hours – Actual Hours)*Standard Rate
= (0.9-0.95)*10,500*16
= $8,400 U
c.Variable overhead Rate Variance = (Standard Rate – Actual Rate)*Actual Hours
=(5.60-5)*10,500*0.95
= $5,985 F
Efficiency = (0.9-0.95)*10,500*5.60
= $2,940 U
2.Direct Material Price = 7560/10500 = $0.72 U
Quantity = $0.06 F
Total = 0.66 U
Labor Rate = 0.57 F
Efficiency = 0.8 U
Total = 0.23 U
Variable overhead Rate = 0.57 F
Efficiency= 0.28 U
Total = 0.29 F
3.
portion due to inefficiency
Labor efficiency variance = 0.8 U
Variable overhead efficiency variance = 0.28 U
Total = 1.08 U
Koontz Company manufactures a number of products. The standards relating to one of these products are...
Koontz Company manufactures a number of products. The standards relating to one of these products are shown below, along with actual cost data for May. Standard Cost per Unit Actual Cost per Unit $ 2.88 $ 3.50 16.20 Direct materials: Standard: 1.80 feet at $1.60 per foot Actual: 1.75 feet at $2.00 per foot Direct labor: Standard: 0.90 hours at $18.00 per hour Actual: 0.95 hours at $17.40 per hour Variable overhead: Standard: 0.90 hours at $6.00 per hour Actual:...
Koontz Company manufactures a number of products. The standards relating to one of these products are shown below, along with actual cost data for May. Standard Cost per Unit Actual Cost per Unit $ 3.60 $ 3.85 18.00 Direct materials: Standard: 1.80 feet at $2.00 per foot Actual: 1.75 feet at $2.20 per foot Direct labor: Standard: 0.90 hours at $20.00 per hour Actual: 0.95 hours at $19.40 per hour Variable overhead: Standard: 0.90 hours at $6.40 per hour Actual:...
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