Labor Efficiency Variance

What is this formula?

Labor Efficiency Variance (LEV) measures the financial impact of using more or fewer labor hours than the standard hours allowed for the actual level of production.

A positive variance generally indicates inefficient labor utilization, while a negative variance indicates labor efficiency better than expected.

When to use it

Use this formula to evaluate workforce productivity, production efficiency, scheduling effectiveness, training programs, and operational performance within a standard costing system.

Example

A factory produces a batch of products.

Data:

Actual Hours Worked = 1,100 h

Standard Hours Allowed = 1,000 h

Standard Labor Rate = $20/h

Formula:

LEV=(AH-SH)SR

Substitution:

LEV=(1,100-1,000)×20

LEV=2,000

Result:

Labor Efficiency Variance = $2,000 unfavorable

Applications

Standard costing systems

Productivity analysis

Manufacturing performance evaluation

Workforce planning

Operational efficiency monitoring

Note

Labor Efficiency Variance is a managerial accounting measure rather than a physical law. The result may be influenced by worker skill levels, machine downtime, material quality, production complexity, supervision, and process design. Different organizations may use different conventions for classifying favorable and unfavorable variances.