Feature: mark-up is not margin
Mark-up measures profit against cost; margin measures it against selling price. Buy at ₦1,000 and sell at ₦1,500: the ₦500 profit is a 50% mark-up but only a 33% margin.
The Outlier Brief · Weekly
Volume 1, Edition 15
Mark-Up Is Not Margin — and the Difference Is Costing You
Monday, 16 November 2026 Lagos | Abuja
Business IntelligenceFinanceStrategyGovernanceAI Advisory
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Executive summary
What this edition covers.
Most owners price by mark-up but think in margin. They are not the same number: a 50% mark-up is only a 33% margin. This edition explains profit on cost versus profit on selling price, how to convert a target margin into the correct mark-up, and how to audit and reprice your best-selling lines as input costs move.
Key takeaway
Most owners price by mark-up — add a percentage to cost — but think in margin, the percentage the business actually keeps. They are not the same number, and the gap between them is wider than almost anyone expects: a 50% mark-up is only a 33% margin. Confuse the two and you systematically under-price, convinced you are making more than you are. In a quarter when the naira is softer and input costs move, that quiet error compounds on every single sale.
Key topics covered
Inside Volume 1, Edition 15.
Business intelligence dashboard
Key indicators for Nigerian businesses, current at preparation (week of 10–14 November 2026): inflation, policy rate, official and parallel naira, petrol, Brent crude, external reserves, trade balance and FDI.
Finance School: profit on cost versus price
Lesson 15: mark-up is profit on cost; margin is profit on price. Convert deliberately: a 50% margin needs a 100% mark-up; a 40% margin needs about 67%.
AI for pricing and margin checks
Pricing tools can calculate true margin on every line, convert target margins into mark-ups, and flag products priced below target. Commercial judgement and pricing strategy remain human.
Case study: a mislabelled pricing rule
An illustrative, anonymised distributor priced at a 45% mark-up while expecting a 45% margin. Reworking the catalogue to a genuine target margin exposed the pricing error.
Mark-up versus margin checklist and compliance watch
Audit your top five selling lines, calculate true margins, agree targets and reprice. October VAT is due by 21 November; October PAYE should already be filed.
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