Final answer:
Duncanville Inc.'s fixed overhead budget variance is calculated by comparing the budgeted and actual fixed overhead costs. The budgeted cost was $200,000, while the actual cost was $210,000, leading to an unfavorable variance of $10,000.
Step-by-step explanation:
To calculate Duncanville Inc.'s fixed overhead budget variance, we need to compare the budgeted fixed overhead costs to the actual fixed overhead costs incurred. The budgeted fixed costs are determined by the original plan which calls for 20,000 machine hours at a rate of $10 per hour, totaling $200,000 ($10/hour * 20,000 hours).
The actual fixed overhead incurred is $210,000. Therefore, the fixed-overhead budget variance is the difference between the budgeted amount and the actual amount incurred:
Budgeted Fixed Overhead: $200,000
Actual Fixed Overhead: $210,000
Variance: Actual - Budgeted = $210,000 - $200,000 = $10,000
As a result, the variance is $10,000 unfavorable, since the actual costs exceeded the budgeted costs.