Gross margin : Definition, Formula, and Calculation
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Does your reporting confuse gross margin and margin rate?
Let's plan an exchangeDiscover our price diagnosticThe Gross margin is the margin percentage calculated based on the pre-tax selling price: (pre-tax selling price − pre-tax purchase cost) ÷ pre-tax selling price. It differs from the Markup, which is calculated based on the purchase cost. It is the standard profitability metric in the French retail sector.
The Essentials
- Gross margin is calculated based on the pre-tax selling price, which means it is always lower than the Markup for the same product.
- Setting a per-aisle target of Gross margin without considering the profit margin in euros overlooks the fact that only the value covers the expenses.
- It allows you to set a selling price based on a target margin for each category, which is directly reflected in the displayed price.
Le taux de marque expliqué en 1 minute
Lire la transcription de la vidéo
Ce lot de casseroles est vendu vingt euros hors taxes. Sur ces vingt euros, une part repart chez le fournisseur.
Et l'autre part, celle qui reste au magasin, elle pèse combien ?
Cette part, c'est le taux de marque : la marge, rapportée au prix de vente hors taxes.
On prend la marge, donc le prix de vente moins le coût d'achat, et on la divise par le prix de vente. Tout se lit à partir de l'étiquette !
Nos casseroles ont été achetées treize euros. Sept euros de marge, sur vingt euros de prix : trente-cinq pour cent.
Plus d'un tiers du prix reste au magasin.
C'est l'indicateur de référence du commerce français, parce qu'on raisonne depuis le prix en rayon. Il reste toujours plus bas que le taux de marge, et n'atteint jamais cent pour cent.
Le piège ? Calculer sur le prix toutes taxes comprises.
La TVA n'est pas de la marge : elle repart à l'État. Votre taux paraît plus beau...
mais il est faux !
Avec Booper, le taux de marque de chaque référence se calcule en continu, et l'IA simule l'effet d'un changement de prix sur les ventes et la marge, avant de le publier.
Le taux de marque : la part du prix qui reste au magasin. À retenir !
Margin on selling price explained in 1 minute
Read the video transcript
This set of saucepans sells for twenty euros before VAT. Part of that goes back to the supplier.
And the part the shop keeps... how big is it?
That share is your profit margin: the margin divided by the selling price, excluding VAT.
Take the margin, so selling price minus purchase cost, and divide it by the selling price. It all starts from the price tag!
Our saucepans cost thirteen euros. Seven euros of margin, on a twenty euro price: thirty-five percent.
More than a third of the price stays in the shop.
It's the benchmark in French retail, because teams think from the shelf price. It's always lower than the markup on cost, and it can never reach a hundred percent.
Watch out for VAT! Calculate on the price including VAT, and your rate looks better...
but VAT isn't margin: it goes to the taxman. So the figure is wrong!
With Booper, every product's profit margin is calculated continuously, and AI simulates how a price change affects sales and margin, before it goes live.
Profit margin: the share of the price the shop keeps. Key takeaway!
In 6 Questions
The portion of the selling price (excluding tax ) that constitutes the distributor's gross margin.
Pricing teams, management accounting teams, and category managers.
For every price setting and in all profitability reports.
By reference number, category, and brand.
Drive profitability based on the listed price, without confusing it with the Markup.
Margin ÷ selling price (excluding tax) × 100.
Calculate Your " Gross margin " Online
Enter the purchase cost and the selling price to calculate the Gross margin, the Markup , and the coefficient, or start with a target rate to determine the selling price.
Free Calculator · gross margin
Brand Rate vs. gross margin: Why the Distinction Matters
For the same margin in euros, the two rates yield very different percentages: confusing them distorts any assessment of profitability.
- Avoid margin/brand confusion : a brand rate of 30% corresponds to a gross margin of 42.9%, which is always higher.
- Directly control the selling price: Calculated based on the listed price, the " Gross margin " makes setting a target price easier to understand.
- Standard practice in the French retail sector: Virtually all retailers set their profitability targets based on the " Gross margin" method.
A Practical Example of Calculating the gross margin
An item purchased for €10 (excluding tax) and resold for €14 (excluding tax) has a Gross margin of 28.6% and a Markup of 40%.
sales margin: 14 € (excl. tax) − 10 € (excl. tax).
Gross margin : 4 ÷ 14.
Markup : 4 ÷ 10.
Confusing the two leads to underestimating or overestimating the actual profitability of a category.
Formula and calculation of the Gross margin
Two formulas are all you need: one calculates the rate, and the other determines the selling price based on a target rate.
| Need | Formula |
|---|---|
| Measure the Gross margin | (Selling price excluding tax − Purchase cost excluding tax) ÷ Selling price excluding tax × 100 |
| Setting a price based on a target rate | Selling price (excluding tax) = Purchase cost (excluding tax) ÷ (1 − target Gross margin ) |
| Skip to Markup | Markup = Gross margin ÷ (1 − Gross margin) |
Not to be confused with the multiplier coefficient (selling price excluding tax ÷ purchase cost excluding tax), this is a third way to express the same difference, which is explained in detail along with gross margin, net margin, and back margin in our guide to calculating sales margin. The “ Gross margin ” is one of the key pricing KPIs for profitability that should be monitored as a priority. To continuously track the “ Gross margin ” for each product and simulate the effect of a price change before implementing it, our price optimization software performs the calculation across the entire catalog. For a one-time snapshot by category, see our price diagnostic ; to align teams on these concepts, our Pricing Training.
Conversion Table: gross margin, Margin Rate, and Coefficient
The same difference between the purchase price and the sale price, expressed in three different ways: find the equivalent of your Gross margin without having to recalculate.
| Gross margin | Markup equivalent | Multiplier coefficient |
|---|---|---|
| 10% | 11.1% | 1,111 |
| 15% | 17.6% | 1,176 |
| 20% | 25.0% | 1,25 |
| 25% | 33.3% | 1,333 |
| 30% | 42.9% | 1,429 |
| 35% | 53.8% | 1,538 |
| 40% | 66.7% | 1,667 |
| 45% | 81.8% | 1,818 |
| 50% | 100.0% | 2,00 |
| 60% | 150.0% | 2,50 |
Markup = Gross margin ÷ (1 − Gross margin); coefficient = 1 ÷ (1 − Gross margin). Rounded values.
Examples of How to Calculate the gross margin by Sector
From one aisle to the next, the same calculation yields very different markups: a fast-moving consumer good sells at a much lower markup than a gardening or drugstore product.
| Industry and Product | Purchase (excl. tax) → Sale (excl. tax) | Margin | Gross margin | markup |
|---|---|---|---|---|
| Food , 250 g package of ground coffee | €3.20 → €4.10 | €0.90 | 22.0% | 28.1% |
| DIY Cordless Drill/Driver | 52.00 € → 79.00 € | 27.00 € | 34.2% | 51.9% |
| Beauty and Health (Pharmacy) Facial Moisturizer | €7.50 → €13.90 | €6.40 | 46.0% | 85.3% |
| High Tech Wireless Earbuds | €38.00 → €54.00 | €16.00 | 29.6% | 42.1% |
Garden Center 50-liter bag of potting soil | €4.10 → €7.90 | €3.80 | 48.1% | 92.7% |
| Sports and Recreation Soccer Ball | €9.00 → €16.50 | €7.50 | 45.5% | 83.3% |
Illustrative examples: fictitious, rounded purchase and sale prices chosen to illustrate the calculation. These are not market averages.
The 3 Common Mistakes with the Gross margin
Confusion between concepts, focusing on a single target, and overlooking the value margin are the classic pitfalls.
- Confusing gross margin with margin rates in a report, which skews comparisons between categories or against benchmarks.
- Set a single target rate for the entire product line, without distinguishing between KVI, loss leaders, and stock items.
- Manage based solely on percentages, without referring to the margin in absolute terms, which masks volume differences between SKUs.
Frequently Asked Questions
Short answers to the most frequently asked questions about the gross margin.
What is the gross margin?
Gross margin is the margin percentage calculated based on the pre-tax selling price: (pre-tax selling price − pre-tax purchase cost) ÷ pre-tax selling price × 100. It indicates the portion of the listed price that goes to the retailer once the merchandise has been paid for. It is the benchmark metric in French retail because teams base their calculations on the shelf price. A product sold for €20 (excluding tax) and purchased for €13 (excluding tax) thus has a Gross margin of 35%. This should not be confused with the grossMarkup calculated based on cost, nor with the margin in euros.
What is the formula for " Gross margin "?
Gross margin = (selling price excluding tax − purchase cost excluding tax) ÷ selling price excluding tax × 100. Example: A product purchased for €10 excluding tax and sold for €14 excluding tax yields a profit of €4, or a Gross margin of 4 ÷ 14 = 28.6%. To calculate the selling price based on a target margin: selling price (excl. tax) = purchase cost (excl. tax) ÷ (1 − Gross margin).
What is the difference between the gross margin and the margin rate?
The difference between Gross margin and Markup lies in the basis for calculation: Gross margin calculates the margin based on the selling price excluding tax, while Markup calculates it based on the purchase cost excluding tax. For the same margin in euros, the value at Markup is therefore always higher. Example: Purchased for €10 (excl. tax), sold for €14 (excl. tax); a product generates a €4 margin, or 28.6% at Gross margin but 40% at Markup. Comparing a target at Gross margin to an actual result at Markup distorts the entire interpretation of a category’s profitability.
How do you convert a gross margin to a margin rate?
To convert from a Gross margin to a Markup, use the following formula: Markup = Gross margin ÷ (1 − Gross margin). A Gross margin of 25% thus corresponds to a Markup of 33.3% (0.25 ÷ 0.75), and a Gross margin of 40% corresponds to a Markup of 66.7%. Conversely, Gross margin = Markup ÷ (1 + Markup). These conversions are primarily used to harmonize reports that mix the two concepts, for example between purchasing—which focuses on cost—and pricing—which focuses on the selling price.
How do you calculate the " Gross margin " based on a price that includes tax?
Gross margin is always calculated based on the pre-tax selling price: therefore, you must first subtract the VAT. Pre-tax selling price = selling price including tax ÷ (1 + VAT rate). A product listed at €16.80 including tax with a 20% VAT rate sells for €14 excluding tax; purchased for €10 excluding tax, it yields a €4 profit margin, representing a Gross margin of 28.6%. Calculating based on the price including tax artificially inflates the rate, since VAT is not a profit margin but an amount paid to the government. The calculator on this page performs the conversion if you enter a price including tax.
Which retail-focused " Gross margin " should you aim for?
The target re Gross margin e in retail depends first and foremost on the category: fast-moving consumer goods are managed with much lower rates than apparel, beauty, or home goods, where volumes are lower. The appropriate benchmark, therefore, is not a general average but the historical data for your own category and its direct competitors. Next, set differentiated targets: a lower rate for loss leaders that drivethe perceived value, and a higher rate for the rest of the shelf, while always monitoring the margin in euros in parallel.
Why are "gross margin" and "margin rate" so often confused?
This is because both figures represent the same margin but are based on different metrics: the selling price for the gross margin, and the purchase price for the margin rate. This confusion skews comparisons between services, annual targets, and coefficient calculations. The solution is to consistently specify the basis in shared documents.
Which " Gross margin " should you choose as your goal for each category?
There is no universally applicable benchmark: a high-turnover, low-logistics-cost department can sustain a much lower rate than a slow-moving, space-intensive department. The target is based on the rate observed over the past three years, adjusted for the category’s expected contribution to total margin.
Key Takeaways
- Gross margin = margin ÷ selling price (excluding tax ); Markup = margin ÷ purchase cost (excluding tax).
- For the same margin, Markup is always higher than Gross margin.
- Set targets by category and also track the profit margin in value terms.
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