The company's actual operating results were:
The variable overhead rate is calculated below:
Actual variable overhead rate = Actual variable overhead/Actual machine hours
= $185,600 / 64,000 hours
= $2.90
The efficiency variance is calculated below:
Variable overhead efficiency variance = Standard rate (Actual hours - Standard hours)
= $3.00 (64,000-63,000)
=$3,000 (Unfavorable)
The calculation of fixed overhead budget variance is shown below:
Fixed overhead Budget Variance = Actual fixed overhead-Budgeted fixed overhead
= $302,400-300,000
= $2,400 (Unfavorable)
The calculation of fixed overhead volume budget variance is shown below:
Fixed overhead Volume Variance = Budgeted fixed overhead - Applied Fixed overhead
=300,000 - (Predetermined OH rate x Std Hrs)
= 300,000 - Budgeted Fixed Overhead/Actual Hours x Standard Hours
= 300,000 - ( $300,000/64,000 × 63,000 )
= 300,000 - $295,313
= $4,688 (Favorable)
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