The margin question has two honest answers: the industry number (thin), and your number (knowable). Here's what restaurants actually keep, the difference between gross and net, and why a small cost gap quietly takes a third of the profit — plus the weekly method that gets it back.
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Definition
Net profit margin is what's left of revenue after every cost — food, labor, rent, everything — expressed as a percentage. Full-service restaurants typically keep 3–6%, quick service 6–9%. Gross margin per dish (price minus ingredient cost) is much higher; the gap between them is your operating costs.
Net margin % = net profit ÷ revenue × 100 · Gross margin (dish) = price − ingredient cost
Commonly cited industry ranges, by format:
Two readings of the same number. Pessimistic: the average full-service restaurant keeps 4 cents of every franc. Realistic: at margins this thin, every point you recover is huge — a venue at 5% that finds two points of cost has grown its profit by 40%. That's why margin work beats revenue work at most venues: you already paid for the ingredients; you just have to stop losing them.
The average F&B venue runs a 5–20% gap between its perceived costs and reality — kitchens typically drift 3–5% between theoretical and actual food cost (Restaurant365, MarginEdge), and bars can lose up to 20% of liquor stock (Sculpture Hospitality). On a 5–10% net margin, that gap is 30–50% of your profit evaporating every month.
This is the arithmetic that makes margin management the highest-leverage work in the building: a cost error that looks small against revenue is enormous against profit. The venue doesn't feel it day to day — it shows up weeks later on a P&L, after the money is gone.
Not a price hike and hope — a sequence. Each step exposes the next one's target.
A 30% average hides the dish at 45% food cost quietly eating your margin and the one at 18% you should be promoting. Cost every recipe at current, edible-portion prices — the margin conversation starts there or it starts wrong.
Food plus labor should stay under about 65% of sales. Read both weekly, not on the month-end P&L: labor is schedulable and food cost is orderable this week, but only if you see this week's number.
With real margins per dish, the menu becomes a portfolio: promote the stars, re-cost the popular-but-thin plowhorses, reposition the profitable-but-ignored puzzles, cut the dogs. Position and description move the mix more than price changes do.
The margin you calculated is the ceiling; variance — waste, over-portioning, unrecorded comps — decides what you keep. A weekly count against sales mix shows the leak while it's still small. This is where the 30–50% comes back.
methodus keeps the inputs of your margin current, so the number is real:
Each recipe carries its selling price, its real ingredient cost, and the margin between them — recalculated whenever a supplier price moves. The margin per dish is a number you read, not a quarterly project.
Drop a supplier invoice and every affected recipe re-costs. Margin erosion from price creep becomes visible the day it starts, not at month-end.
Popularity from your POS sales, profitability from real recipe costs — the star/plowhorse/puzzle/dog matrix assembles itself instead of living in a spreadsheet.
Daily sales from your till, matched to your fiches, so the mix you're engineering is the mix you actually sold.
You stop discovering the margin on a P&L six weeks late — and what was evaporating every month becomes net profit again.
The margin's two biggest levers each have their own guide: food cost percentage → and the labor-cost method — the halves of prime cost.
Commonly cited ranges: 3–6% net for full-service restaurants, 6–9% for quick service and fast-casual, 7–8% for catering, and often 10%+ for beverage-led venues where drinks carry 70–80% gross margins. The spread inside each format is wide — cost discipline separates the top from the bottom far more than the format does.
Net margin = net profit ÷ revenue × 100, where net profit is revenue minus every cost: ingredients, labor with charges, rent, utilities, fees, everything. Distinguish it from gross margin per dish (price minus ingredient cost) — a menu can look great in gross margin and still lose money after operating costs.
Gross margin is what a dish keeps after ingredients only — often 65–75% in food, more in beverage. Net margin is what the venue keeps after everything, typically 3–9%. Gross margin decides which dishes to push; net margin decides whether the business works.
In order of leverage: know the margin per dish at current prices; hold prime cost (food + labor) under about 65% with weekly reads; engineer the menu mix toward high-margin sellers; and close the theoretical-vs-actual gap with weekly counts. Industry studies put that gap at 3–5% in kitchens and up to 20% on bar stock — on thin margins, that's 30–50% of profit recoverable without selling one more cover.
Because three heavy cost blocks stack on every franc of revenue: ingredients (28–35%), labor with charges (25–35%), and occupancy (6–10%) — before utilities, fees, and waste. The venues that keep healthy margins aren't charging wildly more; they're leaking less between theoretical and actual costs.
Who builds methodusmethodus is built by an operator. Nathaniel Gilliand, École hôtelière de Lausanne graduate, runs restaurants, bars and beach clubs. This is the tool he built to find the margin that was evaporating in his own P&L.
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Live margin per fiche, costs that follow your invoices, the menu matrix from real sales. The P&L stops being where you find out.
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