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Budgeting & Forecasting › Flexible Budgets

How does the flexible budget separate the volume variance from other variances?

Intermediate

Answer

By flexing the budget to actual volume, the difference between the original (fixed) budget and the flexed budget is the sales/activity volume variance, while the difference between the flexed budget and actual results reflects price and efficiency variances. This two-stage comparison isolates the effect of producing/selling a different quantity from operating performance.
Fixed budget -> (volume variance) -> Flexed budget -> (price/efficiency) -> Actual.
Real-world example The flexed budget cleanly splits 'we sold a different volume' from 'we spent differently per unit'.

Common follow-ups: What does the gap between fixed and flexed budget show? | What does the gap to actual show?