Exercise 8-4 (20 minutes)
Number of helmets …………………………………….
Standard kilograms of plastic per helmet …………
Total standard kilograms allowed …………………..
Standard cost per kilogram …………………………..
Total standard cost …………………………………….
Actual cost incurred (given) ………………………….
Total standard cost (above) ………………………….
Total material variance—favorable …………………
Actual Quantity
of Input, at
Actual Price
Actual Quantity of Input,
at Standard Price
Standard Quantity
Allowed for Output, at
Standard Price
Price Variance =
$9,000 F
Quantity Variance =
$30,000 F
Spending Variance = $39,000 F
*35,000 helmets × 0.75 kilograms per helmet = 26,250 kilograms
Alternatively, the variances can be computed using the formulas:
Materials price variance = AQ (AP – SP)
22,500 kilograms ($7.60 per kilogram* – $8.00 per kilogram)
= $9,000 F
* $171,000 ÷ 22,500 kilograms = $7.60 per kilogram
Materials quantity variance = SP (AQ – SQ)
$8 per kilogram (22,500 kilograms – 26,250 kilograms)
= $30,000 F