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Miller Toy Company manufactures a plastic swimming pool at its Westwood Plant. The standard cost for...

Miller Toy Company manufactures a plastic swimming pool at its Westwood Plant. The standard cost for one pool is as follows:

Standard Quantity or Hours Standard Price or
Rate
Standard
Cost
  Direct materials 1.60 kilograms    $5.00 per kilogram $ 8.00   
  Direct labour 0.90 hours      $5.00 per hour     4.50   
  Variable manufacturing overhead 0.40 machine-hours        $2.00 per machine-hour 0.80   
  Total standard cost $ 13.30   

The plant has been experiencing problems for some time, as is shown by its June income statement when it made and sold 15,200 pools; the normal volume is 15,350 pools per month. Fixed costs are allocated using machine-hours.

Flexible Budgeted Actual
  Sales (15,200 pools) $ 456,000     $ 456,000    
  Less: Variable expenses:
     Variable cost of goods sold* 202,160     203,534    
     Variable selling expenses 20,300     20,300    
  Total variable expenses 222,460     223,834    
  Contribution margin 233,540     232,166    
  Less: Fixed expenses:
     Manufacturing overhead 132,000     132,000    
     Selling and administrative 85,120     85,120    
  Total fixed expenses 217,120     217,120    
  Net income $ 16,420     $ 15,046    
*Contains direct materials, direct labour, and variable manufacturing overhead.

Janet Dunn, the general manager of the Westwood Plant, wants to get things under control. She needs information about the operations in June since the income statement signalled that the problem could be due to the variable cost of goods sold. Dunn learns the following about operations and costs in June:

a. 31,500 kilograms of materials were purchased at a cost of $4.10 per kilogram.
b.

24,500 kilograms of materials were used in production. (Finished goods and work-in-process inventories are insignificant and can be ignored.)

c. 11,900 direct labour-hours were worked at a cost of $8 per hour.
d.

Variable manufacturing overhead cost totalling $14,184 for the month was incurred. A total of 5,910 machine-hours was recorded.

It is the company’s policy to close all variances to cost of goods sold on a monthly basis.
Required:
1. Compute the following variances for June:
a.

Direct materials price and quantity variances. (Indicate the effect of each variance by selecting "F" for favourable, "U" for unfavourable, and "None" for no effect (i.e., zero variance).)

b.

Direct labour rate and efficiency variances. (Indicate the effect of each variance by selecting "F" for favourable, "U" for unfavourable, and "None" for no effect (i.e., zero variance).)

c.

Variable overhead spending and efficiency variances. (Indicate the effect of each variance by selecting "F" for favourable, "U" for unfavourable, and "None" for no effect (i.e., zero variance).)

Solutions

Expert Solution

Cost card
Particulars Standard cost for actual production Particulars Actual cost
Quantity/hour Rate($/KG/hr) Amount Quantity/hour Rate($/KG/hr) Amount
Direct Material 24320 5 $              121,600 Material purchased 31500 4.1 $                 129,150.00
(15200 pools * 1.6 KG) Material used 24500 4.1 $                 100,450.00
Closing material 7000 $                    28,700.00
Direct labour 13680 5 $                68,400 Direct labour 11900 8 $                    95,200.00
(15200 pools * 0.9 hr)
Variable overhead 6080 2 $                12,160 Variable overhead 5910 2.40 $                    14,184.00
(15200 pools * 0.4 hr) ($ 14184/5910 hr)
Total Standard manufacturing cost $              202,160
1 Computation of variances for June:
a Material Price variance = (Standard rate - Actual rate) * Actual quantity purchase
Material Price variance = ( 5 - 4.1 ) * 31500 = 28350 (Favorable)
Material efficiency variance = (Standard Quantity - Actual Quantity used) * Standard rate
Material efficiency variance = (24320-24500) * 5 = -900 (Unfavorable)
b Labor Rate variance = (Standard rate - Actual rate) * Actual hours
Labor Rate variance = ( 5-8 ) * 11900 = -35700 (Unfavorable)
Labor efficiency variance = (Standard Hours - Actual Hours) * Standard rate
Labor efficiency variance = (13680-11900) *5 = 8900 (Favorable)
c Variable Overhead Rate variance = (Standard rate - Actual rate) * Actual hours
Variable Overhead Rate variance = ( 2-2.4 ) * 5910 = -2364 (Unfavorable)
Variable overhead efficiency variance = (Standard Hours - Actual Hours) * Standard rate
Variable overhead efficiency variance = (6080-5910) * 2 = 340 (Favorable)
2 Variances Favourable/(Unfavourable)
MRV $                      28,350.00
MEV $                          (900.00)
LRV $                    (35,700.00)
LEV $                         8,900.00
VORV $                      (2,364.00)
VOEV $                            340.00
Net favourable/(unfavourable) variance $                      (1,374.00) $                         -  

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