An overview of the 4 overhead variances is:
4-Variance
Analysis
Spending
Variance
Efficiency
Variance
Production-Volume
Variance
Variable
8-27 Straightforward 4-variance overhead analysis. The Lopez Company uses standard
costing in its manufacturing plant for auto parts. The standard cost of a particular auto part, based
on a denominator level of 4,000 output units per year, included 6 machine-hours of variable
manufacturing overhead at $8 per hour and 6 machine-hours of fixed manufacturing overhead at
$15 per hour. Actual output produced was 4,400 units. Variable manufacturing overhead incurred
was $245,000. Fixed manufacturing overhead incurred was $373,000. Actual machine-hours
were 28,400.
Required:
1. Prepare an analysis of all variable manufacturing overhead and fixed manufacturing
overhead variances, using the 4-variance analysis in Exhibit 8-4 (page 304).
2. Prepare journal entries using the 4-variance analysis.
3. Describe how individual fixed manufacturing overhead items are controlled from day to day.
4. Discuss possible causes of the fixed manufacturing overhead variances.
SOLUTION
(20–30 min.) Straightforward 4-variance overhead analysis.
1. The budget for fixed manufacturing overhead is 4,000 units × 6 machine-hours × $15
machine-hours/unit = $360,000.
An overview of the 4-variance analysis is:
4-Variance
Analysis
Spending
Variance
Efficiency
Variance
Production-
Volume Variance
Variable
Manufacturing
Overhead
$17,800 U $16,000 U Never a Variance
8-5
$500 U
Flexible-budget variance
$800 U
Production-volume variance
$1,300 U
Underallocated fixed overhead
(Total fixed overhead variance)