Answer:
Variable overhead variance =11360 fav
Fixed overhead variance=64379 unfav
Step-by-step explanation:
First we find the rates and then put them into formulas to get the variances.
Blue Bird Manufacturing
Estimated annual variable factory overhead $415,000
Estimated fixed factory overhead $895,000.
Estimated Hours = 15 * 1850= 27750
Estimated Fixed Overhead Rate= $895,000/27750= 32.25
Estimated Variable Overhead Rate= $415,000/27750= 14.96
Total units produced 8,950
Actual variable overhead $340,000
Actual fixed overhead $911,000
Actual labor hours 27,000
The variable and fixed overhead variances can be calculated as follows in two steps.
Variable overhead variance =11360 fav
Variable overhead variance = Variable overhead Efficiency variance+Variable overhead Rate variance= 140 fav+11220 fav=11360 fav
Variable overhead Efficiency variance = Actual Variable Overhead- Actual hours * Standard Rate
=$415,000- (27750* 14.96)
=$415,000-$415,140
= 140 fav
Variable overhead Rate variance = Actual hours * Standard Rate - Standard hours * Standard Rate
= (SH- AH)SR
= (27750- 27000) 14.96
= 750*14.96
= 11220 fav
Fixed overhead variance=64379 unfav
Fixed overhead variance=Fixed overhead spending variance+Fixed overhead volume variance=40189.1+24190= 64379 unfav
Fixed overhead spending variance= Actual Fixed overhead- Budgeted Fixed overhead
= $911,000 -( 27000 *32.25)
=911000-870810.8
=40189.1 unfavorable
Fixed overhead volume variance=Budgeted Fixed overhead- Applied Fixed overhead
=(Actual Overhead * standard Rate)- Actual Fixed Overhead
= (27000 *32.25)-$895,000
=870810.8-$895,000
=24190 unfavorable