Profit Margin Calculator
A profit margin calculator has to keep margin and markup apart: they are not the same number, and charging the second while quoting the first is how a business loses money profitably.
Gross margin
- Gross margin Gross profit / revenue = $40.00 / $100.00.
- 40%
- Gross profit $100.00 revenue less $60.00 of cost.
- $40.00
- Net margin Net profit / revenue = $20.00 / $100.00, after $20.00 of operating expenses.
- 20%
- Net profit
- $20.00
- Equivalent markup on cost A 40% margin and a 66.7% markup are the same price. They describe the same transaction over different denominators, and they are only equal at zero.
- 66.67%
- Price for a 50% margin cost / (1 - margin). Marking the cost up by 50% instead gives $90.00, which is only a 33.3% margin, $30.00 per unit short.
- $120.00
- A 1% price rise vs a 1% cost cut The price rise is worth more, because revenue is the larger number. This is why pricing beats procurement at most margins.
- $1.00 vs $0.60 of extra profit
| Margin | Markup | Price on a $60.00 cost |
|---|---|---|
| 10% | 11.1% | $66.67 |
| 20% | 25% | $75.00 |
| 25% | 33.3% | $80.00 |
| 33.3% | 49.9% | $89.96 |
| 40% | 66.7% | $100.00 |
| 50% | 100% | $120.00 |
| 60% | 150% | $150.00 |
| 75% | 300% | $240.00 |
- Margin divides profit by revenue; markup divides it by cost. A 50% margin is a 100% markup. Confusing them systematically underprices, because markup is always the larger number.
- Gross margin excludes operating expenses and net margin includes them. Neither accounts for tax or interest; that would be net income rather than net profit.
How the Profit Margin Calculator works
Profit margin is profit as a share of revenue. Markup is the same profit as a share of cost. Both are correct, both are used daily, and mixing them up is the most expensive arithmetic error in small business.
Take a $60 cost sold for $100. Profit is $40. The margin is 40/100 = 40%. The markup is 40/60 = 66.7%. One transaction, two legitimate percentages, and whichever one you quote, the other is what somebody else might mean.
The error shows up when pricing from a target. Asked for a 40% margin on a $60 cost, the instinct is to multiply: $60 x 1.40 = $84. But $84 with a $60 cost is a $24 profit, which is a 28.6% margin, not 40%. The correct formula divides: price = cost / (1 - margin), so $60 / 0.60 = $100. The gap is $16 a unit, and it always runs in the same direction: under-pricing, by more as the target margin rises. At a 50% target the mistake costs $30 on a $60 cost; at 60% it costs $54.
Three margins are worth distinguishing, and they sit at different points on an income statement.
Gross margin is revenue less the cost of goods sold, over revenue. It measures the product. Net margin subtracts operating expenses (salaries, rent, software, marketing) and measures the business. Operating margin is the same thing by another name in most usage. A product can have a wonderful gross margin and a business built on it can still lose money, which is the whole history of venture-funded delivery companies: 25% gross margins and negative net margins because the overhead never fit under the gross profit.
Typical gross margins vary enormously by industry and comparing across them is meaningless. Grocery runs 25% gross and 2% net. Restaurants are 60-70% gross on food and 3-5% net. Software is 75-90% gross. Construction is 15-25%. A 30% gross margin is excellent in distribution and alarming in software.
Two practical consequences worth more than the formulas.
First, a price rise beats a cost cut at almost any margin, because revenue is the bigger number. On the example above, raising the price 1% adds $1 of profit; cutting the cost 1% adds $0.60. On thin margins the effect is dramatic: at a 5% net margin, a 1% price rise raises profit by 20%.
Second, discounting costs more than it appears. A 10% discount on a 40% margin product does not cost 10% of profit. It cuts the margin to 33% and costs a quarter of the profit. At a 20% margin, a 10% discount halves it. The volume increase needed to break even on a discount is far larger than most people assume, and it is why "we'll make it up on volume" usually does not.
Profit Margin Calculator FAQ
What is the difference between margin and markup?
Margin is profit divided by the selling price; markup is profit divided by the cost. A $60 item sold for $100 has a 40% margin and a 66.7% markup. Markup is always the larger of the two. They are equal only when both are zero.
How do I price for a target margin?
Price = cost / (1 - margin), not cost x (1 + margin). For a 40% margin on a $60 cost that is $60 / 0.60 = $100. Multiplying instead gives $84, which is only a 28.6% margin. The error always underprices, and by more the higher the target.
What is a good profit margin?
Entirely industry-dependent, so the comparison has to be against similar businesses. Grocery runs about 25% gross and 2% net; restaurants 60-70% gross and 3-5% net; software 75-90% gross. Across all industries a net margin around 10% is often called average, which is a number too broad to act on.
How much does discounting cost me?
More than the discount. A 10% discount on a product with a 40% margin cuts the margin to about 33% and removes a quarter of the profit per sale. On a 20% margin it halves the profit. To break even you would need to sell 50% more units, which is why discounting is usually a worse trade than it looks.