ClearCFO learning guide · Updated 27 September 2026 · Educational information
Make the comparison fair
Use the same period, scope, accounting treatment and units. Separate approved plan changes from performance differences. If activity differs substantially, a flexible budget can help distinguish volume effects from spending or efficiency effects.
Set a sign convention
Actual minus budget is a mathematical variance; whether it is favourable depends on the line. Higher revenue and higher cost have different implications. Label the economic direction rather than relying on a plus sign or colour.
Quantify without double counting
Separate price, volume, mix and cost drivers using one documented bridge. Check that the driver totals reconcile to the overall movement. Do not assign the same effect to more than one explanation.
Write useful commentary
State the fact, evidence-supported driver, financial impact, recommended action, owner and review date. If the cause is unconfirmed, record the investigation needed instead of presenting a hypothesis as fact.
Further reading: ACCA: management accounting specimen answers.
Examples are illustrative and simplified. Apply definitions and assumptions appropriate to your business; obtain professional review for material decisions. Read the financial disclaimer.