Best Practices and Limitations of Variance Analysis

Using Variance Analysis Effectively

Variance analysis is most valuable when organizations investigate significant differences, identify root causes, and implement corrective actions. Managers should recognize that external economic conditions, changing assumptions, and estimation uncertainty can influence reported variances.

• Focus on material variances.
• Investigate root causes rather than symptoms.
• Combine financial and operational measures.
• Compare trends over multiple periods.
• Consider external economic conditions.
• Use variance analysis to support learning and improvement.
• Avoid evaluating managers based on uncontrollable factors.

Performance improves when organizations understand not only what happened, but why it happened.