Guide: How to Calculate the Real Margins on Your Products

Do you really know how much you earn on each baguette, each croissant, each country loaf? Many artisan bakers have only a vague sense of their margins, based on gut feeling rather than precise calculation. Yet without knowing your real margin product by product, it's impossible to tell which items are truly profitable and which are dragging down your results.

This guide walks you through the margin calculation step by step, with a concrete example you can replicate for every product you sell.

Gross margin vs net margin: understanding the difference

Gross margin measures the difference between the selling price and the cost of raw materials — a concept <a href="https://www.investopedia.com/terms/g/grossmargin.asp" target="_blank" rel="noopener noreferrer">explained clearly by Investopedia</a>. It's the simplest and most common calculation. For example, if your baguette sells for £1.20 and the flour, water, salt and yeast cost £0.25, your gross margin is £0.95, or 79%. It's a useful indicator, but misleading if used alone. See our guide on <a href="/blog/pricing-mistakes">common pricing mistakes</a> for more.

Net margin factors in ALL costs: raw materials, direct labour (the time spent by the baker and the shop assistant), baking energy, packaging and a share of fixed costs (rent, insurance, depreciation). This is the margin that tells you how much you actually earn on each product.

In artisan bakeries, it's common to see a gross margin of 70–80% on breads, but a net margin of only 10–25% once all costs are included. The gap is significant and explains why some bakers work very hard for modest incomes.

Step-by-step example: the real margin on a traditional baguette

Let's take a traditional baguette sold at £1.30. The ingredients for a 250g baguette: T65 flour (£0.15), water, salt and starter (£0.05), totalling £0.20 in raw materials. Direct labour time is estimated at 2 minutes per baguette (kneading, shaping, baking, shelving), which comes to about £0.40 at a loaded hourly rate of £12.

The energy cost for baking is estimated at £0.08 per baguette (gas or electric oven, amortised). Packaging (a paper bag) costs £0.02. The share of fixed costs (rent, insurance, equipment) amounts to around £0.15 per baguette for a bakery producing 300 baguettes a day.

Total cost: £0.20 + £0.40 + £0.08 + £0.02 + £0.15 = £0.85. The net margin is therefore £1.30 – £0.85 = £0.45, or 34.6%. That's significantly less than the 84% gross margin calculated on ingredients alone, but it's an honest figure on which you can make strategic decisions.

Using margin data to optimise your product mix

Once you know the real margin on each product, you can make informed decisions about your range. Identify your star products: those combining high margin AND high sales volume. These are the ones funding your business. Feature them prominently in your window display and marketing.

Also spot your trap products: those that seem popular but whose real margin is low or even negative. A speciality loaf requiring 30 minutes of hand-shaping may have a net margin of 5% despite a high selling price. You then have a choice: raise the price, simplify the recipe or remove it from the range.

With <a href="/#features">Fournil</a>, each recipe is automatically linked to its ingredients with up-to-date costs. Margins are calculated in real time and you can view your entire range ranked by profitability. When a supplier price changes, the impact on your margins is immediately visible — no manual calculation needed.

Conclusion

Knowing your real margins isn't a luxury reserved for large companies — it's a necessity for any artisan baker who wants to sustain their business. The calculation takes a little time the first time round, but once the method is in place, it becomes second nature.

<a href="/#features">Fournil</a> automates this work by calculating your margins continuously from your recipes and up-to-date costs. You save time, eliminate calculation errors and make better commercial decisions.