ACCA FR September 2026: Why "Gross Margin Has Increased" Scores Zero in the Interpretation Question

Writing "gross margin has increased" scores zero in the ACCA FR interpretation question. The examiner has said so in print. The marks are for explaining why the ratio moved, using facts from the scenario.

What the FR examiner actually said

The March/June 2025 FR examiner's report picked apart Longannet Co, a 20-mark Section C question on an individual supermarket chain compared to sector averages. The verdict on the 12-mark analysis part: "performance in interpretation questions continues to be poor", and "most candidates failed to score high marks". The examiner blamed technique, not knowledge.

Three things get no credit at all. Stating the formula for a ratio. Explaining what the ratio means in general terms. Saying it has gone up or down. Every one of those sentences takes time and earns nothing.

What does score is linking a fact from the scenario to a ratio and developing the point. Longannet was described in the opening line as the largest supermarket chain in its country. That single fact explains the gross margin of 16.1% against a sector 13.0% (buying power, economies of scale) and the payables period of 79 days against 65 (it can dictate terms to suppliers). Two ratios, one scenario fact, several marks.

Using the scenario wrongly also scores zero

Lots of candidates blamed Longannet's higher gross margin on the new budget stores opened in the year. Wrong direction. Budget stores run high volume at low margins, so they would pull gross margin down, not up. The examiner gave no marks for that point.

Another common error: saying rent payments hit operating margin because the company leases property. Longannet owned its stores, and even if it didn't, under IFRS 16 a lease shows up as depreciation and finance cost, not rent. The examiner called this "a fundamental misunderstanding of IFRS 16".

Wrong answer vs right answer

Longannet's inventory days were higher than the sector. It had signed a new home furnishings agreement during the year.

Wrong (0 marks): "Inventory days have increased above the sector average, which means inventory is held for longer and could indicate obsolescence."

Weak (1 mark): "Inventory days are higher because of the new home furnishings agreement."

Right (2 to 3 marks): "Inventory days are higher than the sector because home furnishings turn over far more slowly than food. Unlike food, furnishings are not perishable, so the higher figure is not necessarily a cause for concern, though it ties up more working capital."

Same fact. The difference is the "because" and the "so what".

The calculation marks you are dropping

The 4-mark ratio calculation part should be free marks. It wasn't. Common errors in the report: using the wrong profit figure for operating margin and ROCE, not knowing what goes into capital employed, and using revenue instead of cost of sales for inventory days and payables days. The gearing calculation was often skipped altogether, and many who attempted it used debt/(debt + equity) when the question said debt/equity.

Workings matter too. The own-figure rule saved candidates who got the convertible loan note journal wrong but carried it into gearing correctly. It can only be applied when the working is visible.

What to do

1. Read the scenario before the numbers and list every business fact. Largest chain in the country, new budget stores, home furnishings deal, owns its properties, convertible loan notes. Each is a hook for at least one ratio comment.

2. Write every point as ratio, cause, consequence. "Payables days are 79 vs 65 because a market leader can negotiate longer credit, which helps cash flow but risks supplier relationships." If your sentence has no "because", delete it.

3. Put a heading called Conclusion and write three lines specific to the company. There is a mark for it in every FR analysis question. For Longannet: profitable and liquid today, but budget stores and furnishings add risk to future margins and working capital.

The numbers

FR pass rates have sat at 50 to 55% across recent sittings. Interpretation is 20 marks of a 100-mark paper and the examiner says most candidates score badly on it. Fix this one question and you are a long way towards the pass mark.

Nobody fails FR for not knowing what a current ratio is. They fail for not saying why it changed.