
Paper F5: Performance management
178 Go to www.emilewoolfpublishing.com for Q/As, Notes & Study Guides © EWP
The fixed overhead total cost variance is the over-absorbed or under-absorbed
overhead. Here there is over-absorbed overhead of $5,000, and the total fixed
overhead cost variance is therefore $5,000(F).
(Absorbed fixed overheads = $60,000 at $4 per unit; actual fixed overheads =
$55,000; therefore over-absorbed = $5,000).
This total fixed production overhead variance can be analysed into an expenditure
variance and a volume variance. The variances are calculated in the same way as for
standard costing.
There is an expenditure variance, which is the difference between the budgeted
fixed production overhead expenditure ($40,000) and the actual fixed production
overhead expenditure ($55,000), giving an expenditure variance of $15,000(A).
The volume variance is the difference between the budgeted production volume
(10,000 units) and the actual production volume (15,000 units). This is 5,000 units
(favourable), and at an absorption rate of $4 per unit, the fixed production
overhead volume variance is $20,000 (F) [= 5,000(F) × $4].
In this example, other fixed costs are not included in the absorption costing
system, and a treated as a fixed period cost. The budgeted profit per unit is
therefore the sales price minus the full production cost minus the variable sales
cost per unit:
Budgeted profit per unit = $25 - $19 - $1 = $5.
The sales volume variance is measured at this budgeted profit of $5 per unit.
Since actual sales exceeded sales in the fixed budget by 5,000 units the total sales
volume variance in this example is $25,000 (F). It is favourable, because actual
sales volume exceeded the budget by 5,000 units. This sales volume variance in
the table above is shown as the difference between the fixed budget profit and
the flexed budget profit.
Operating statement summary, absorption costing
$
$
Budgeted profit
20,000
Sales volume variance
25,000
(F)
Sales price variance
14,000
(A)
31,000
Cost variances
Direct materials 4,000
(A)
Direct labour 8,000
(F)
Variable production overheads 7,000
(F)
Variable sales overheads 3,000
(A)
Fixed production overhead total
variance
5,000
(F)
Other fixed costs expenditure 5,000
(A)
8,000
(F)
Actual profit
39,000
The fixed production overhead total cost variance could be shown instead as the
separate expenditure variance ($15,000 (A)) and volume variance ($20,000 F)).