Pricing & Margin Calculator

Margin and markup are not the same number

The most expensive mistake in pricing is treating margin and markup as interchangeable. Both express profit as a percentage, but they divide by different things. Margin divides profit by the selling price; markup divides profit by the cost. Because the price is always larger than the cost, the margin percentage is always smaller than the markup percentage for the same sale.

Take a unit that costs $20 and sells for $50. The profit is $30. As a margin that is 30 / 50 = 60%. As a markup that is 30 / 20 = 150%. A supplier who tells you they add a 150% markup and a finance report that shows a 60% margin can be describing the identical transaction. Knowing which base you are working from is the difference between a healthy business and one that quietly loses money on every sale.

Pricing to hit a target margin

When you want a specific margin, the instinct is to add that percentage to the cost. That is wrong, and it undershoots every time. Adding 60% to a $20 cost gives $32, which is only a 37.5% margin, not 60%. The reason is that the margin is measured against the final price, which you do not yet know.

The correct formula solves for price directly: price = cost / (1 − margin). For a 60% target on a $20 cost, that is 20 / (1 − 0.60) = 20 / 0.40 = $50, which delivers exactly 60%. This tool uses that formula in margin mode, so the selling price it returns will always produce your intended margin. Margins of 100% or more are impossible because they would require an infinite or negative price, so the tool caps input below 100%.

• Price from margin: price = cost / (1 − margin)
• Profit per unit: profit = price − cost
• Gross margin: margin = profit / price
• Markup on cost: markup = profit / cost

Working backwards from a price and discount

The second mode answers the opposite question: given a price you already charge and a discount you are considering, what margin and profit are you left with? First the tool computes the net price after discount as list price × (1 − discount). Then profit is that net price minus cost, margin is profit divided by the net price, and markup is profit divided by cost.

This matters because discounts hit profit disproportionately. If your margin is 40% and you offer a 20% discount, you are not giving away 20% of profit, you are giving away roughly half of it, because the discount comes entirely out of the margin, not the cost. Seeing the post-discount margin before you launch a promotion stops you from running sales that lose money on every order.

Where these numbers stop and judgement begins

This is a unit-economics calculator: it works out gross margin on a single unit, which is the foundation of pricing but not the whole story. It deliberately ignores fixed costs like rent, salaries, and software, so a healthy gross margin does not by itself mean the business is profitable once those overheads are covered.

For subscription and SaaS products, remember that unit cost should reflect the true marginal cost of serving one more customer, including support, payment fees, and infrastructure, not just an obvious cost of goods. Blend this margin view with volume, customer acquisition cost, churn, and lifetime value before setting a final price. The calculator sharpens the maths so your judgement can focus on the strategy.