Answer:
1 a. Materials price and quantity variances.
Material price variance = (Actual price - Standard price) * Actual Quantity purchased
= ($2.45 - $2) * 15,800
= $0.45 * 15,800
= $7110 (Unfavorable)
Materials Quantity variance = (Actual Quantity used - Standard Quantity allowed) * Standard price
(10600 - 3000 * 3.6) * $2
= (10,600 - 10,800) * $2
= 200 * $2
= 400 (Favorable)
b. Labor rate and efficiency variances.
Labor rate variance = (Actual rate - standard rate) * Actual hours
= (6.30 - 6.6) * 2,100
= 0.3 * 2,100
= 630 (Favorable)
Labor Efficiency variance = (Actual hours - standard hours allowed) * Standard rate
= (2100 - 3000 * 0.5) * 6.6
= (2,100 - 1,500) * 6.6
= 600 * 6.6
= 3960 (Unfavorable)
c. Variable overhead rate and efficiency variances
Variable overhead rate variance = (Actual rate - Standard rate * Actual machine hours)
= 3000 - (2.10 * 1200)
= 3,000 - 2,520
= 480 Unfavorable
Variable overhead Efficiency variance = (Actual hours - standard hours allowed)* Standard rate
= (1200 - 3000 * 0.3) * 2.10
= (1200 - 900) * 2.10
= 300 * 2.10
= 630 (Unfavorable)
2. Variances Amount
Material price variance 7,110 U
Material quantity variance 400 F
Labor rate variance 630 F
Labor efficiency variance 3,960 U
Variable overhead rate variance 480 U
Variable overhead efficiency variance <u>630 U</u>
Net variance <u>11,150 U</u>
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The net variance of all the variance of the month is 11,150 (Unfavorable)
