What Is Variable Overhead Efficiency Variance?
The difference between the actual time it takes to make a product, the time allotted for it, and the consequences of that discrepancy are referred to as the variable overhead efficiency variance. It results from variations in the rate of production.
For instance, there may be a considerable discrepancy between the regular or planned work hours required to make a certain quantity of goods. One of the two parts of the overall variable overhead variance is the overhead efficiency variance; the other is the overhead expenditure variance.
Comprehending Variations in Variable Overhead Efficiency
Variable overhead efficiency variation may be expressed numerically as follows:
VOEV=(ALH−BLH)×Hourly Rate
Where:
VOEV=Variable overhead efficiency variance
ALH=Actual labor hours
BLH=Budgeted labor hours
Hourly rate for standard variable overhead
This formula’s hourly rate accounts for indirect labor expenses like security and shop foreman. The variable overhead efficiency variance is advantageous if actual work hours are fewer than the budgeted or standard amount and unfavorable if solid labor hours exceed the budgeted or typical amount.
An Illustration of Variable Efficiency Variance in Overhead
Examine a widget manufacturing facility as an example, where the usual variable overhead rate, which accounts for indirect labor expenses, is $20 per hour. Assume that 2,000 hours is the typical amount of time needed to produce 1,000 widgets. However, the business required 2,200 hours to create 1,000 widgets. The firm took longer than planned to make the 1,000 widgets. Therefore, the variation in overhead efficiency is unfavorable in this situation and equals (2,200 – 2,000) x $20 = $4,000. Alternatively, if the business had required 1,900 hours to produce 1,000 widgets, the difference would have been $2,000.
Conclusion
- Examine the nuances of evaluating production efficiency using the variable overhead efficiency variance and how it affects choices made about cost accounting.
- Explore the actual hours, standard hours permitted, and variable overhead rate to understand the computations behind the variable overhead efficiency variation.
- Understand how resource utilization efficiency impacts total operating expenses by assessing the significance of positive or negative deviations.

