How Do You Answer Variance Analysis Questions in ACCA PM?

Variance analysis is one of the most reliable sources of marks in ACCA PM — it appears in almost every sitting and follows a predictable structure. Yet students routinely lose easy marks by getting the arithmetic wrong and assuming the whole answer is ruined, or by calculating variances flawlessly and then writing nothing useful about what they mean. Both halves matter, and the marking scheme rewards them separately.

How the marks are split

A typical variance question has two distinct parts, each marked differently:

• The calculation: marks for the correct method and formula, not just the final number. Get the approach right and you earn most of the marks even if a figure is wrong.
• The interpretation: marks for explaining the likely cause of each variance and, crucially, how variances interrelate.

Rule 1: Always label F or A

Every variance must be marked favourable (F) or adverse (A). An unlabelled number is ambiguous and can lose the mark even when the figure is right. Set your workings out clearly with the direction stated — examiners award method marks from workings, so messy or hidden calculations cost you.

Rule 2: Own-figure follow-through protects you

This is the rule most students don't know they can rely on. If you make an arithmetic slip early — say the wrong standard cost — every later figure that correctly uses your wrong number still earns its method mark under the own-figure rule. You are only denied the specific mark for the figure you got wrong, not the marks that flow from it. This is why you must show every step: a hidden calculation gives the marker nothing to reward.

Rule 3: Interpretation means cause, not direction

'The material price variance was adverse' restates the number and earns nothing. To score, explain a plausible cause tied to the scenario — a supplier price rise, a switch to a higher-grade material, an over-optimistic standard — and, where the scenario supports it, link variances together: a favourable material price variance from buying cheaper material may have caused an adverse usage variance from more wastage. That interdependence is where the higher marks sit.

Rule 4: Know planning versus operational variances

Where a question revises the standard, split the total variance into a planning variance (the original standard was wrong) and an operational variance (performance against the revised, realistic standard). Managers are only accountable for operational variances — say so. Confusing the two, or forgetting to split at all, is a common and costly error.

The takeaway

Variance questions reward a disciplined method and a scenario-specific explanation, not raw arithmetic. Show every step so own-figure marks survive a slip, always label F or A, and explain causes and interdependencies rather than restating the numbers.

The problem is you can't tell whether your workings would earn the method marks just by reading them back — they always look complete to the person who wrote them. The 50% Club marks your practice PM answers against the official ACCA scheme, showing you exactly where you've lost a method mark, failed to label a variance, or restated a number instead of interpreting it — so you walk into the exam scoring the marks your workings deserve.