The total overhead variance is an unfavorable $2,000 (the overhead account has a $2,000 debit balance). The volume variance contributed a $5,000 unfavorable.
The total overhead variance is the difference between the total overhead absorbed and the actual total overhead incurred.
Total overhead charged to the overhead account was $42,000, the amount applied was $40,000, the difference, $2,000, is the total unfavorable overhead variance.
Volume variance: the amount applied- the budgeted fixed overhead + standard hours allowed x variable at the budgeted rate.
Derive rates : The budgeted rates are derived from the $40,000 applied based on 5,000 hours. The total rate is $8.00 per hour ($40,000/5,000). The $3.00 variable rate is given, so the fixed rate must be $5.00.
Fixed costs: Budgeted fixed costs are the budgeted production of 6,000 units* 1 hour times the $5.00 rate or $30,000.
Variable costs: Variable overhead based on allowed hours is $3.00 times 5,000 or $15,000. The budget based on standard hours allowed is, therefore, $45,000 ($30,000 fixed + $15,000 variable).
Variance computation: The volume variance is the difference between the $45,000 allowed and the $40,000 actually applied, $5,000.
Budget standard hours allowed: Fixed - 5.00 *6,000 = 30,000
Variable- 3.00 * 5,000 = 15,000
Overhead applied = 45,000
Overhead applied: Fixed- 5.00 * 5,000 = 25,000
Variable- 3.00 * 5,000 = 15,000
Overhead applied = 40,000 and Net overapplied volume= 5,000
Net overapplied overhead = $2,000
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