Margin & Retail Price Calculator
Enter what an item costs you and the gross margin you want, and this returns the price you have to charge. The reason it needs a calculator at all is that margin is expressed as a percentage of the selling price, not of cost, so you cannot get there by adding a percentage to your cost.
How to use it
- Enter your wholesale or landed cost per unit.
- Enter the gross margin percentage you want to achieve.
- Read the required retail price, gross profit, and the equivalent markup.
Margin and markup are different numbers
Both describe the gap between cost and price, but they divide by different things. Margin is profit divided by selling price. Markup is profit divided by cost.
On an item costing $50 sold for $100, the profit is $50. That is a 50 percent margin and a 100 percent markup. Neither figure is wrong; they answer different questions.
The mistake that costs money is treating them as interchangeable. Adding 30 percent to a $50 cost gives $65, and $15 profit on a $65 sale is a 23 percent margin, not 30. To actually achieve a 30 percent margin the price has to be $71.43. Across a catalogue that gap is the difference between a business that clears its overhead and one that does not.
The conversion is worth memorising for the common cases: a 25 percent margin is a 33 percent markup, 33 percent margin is a 50 percent markup, 50 percent margin is 100 percent markup, and 60 percent margin is a 150 percent markup. Note that margins approach but never reach 100 percent, while markup has no ceiling.
What belongs in cost
The margin figure is only as good as the cost figure, and unit cost is routinely understated by using the supplier invoice price alone.
Landed cost should generally include:
- Inbound freight and any duty or customs charges, allocated per unit.
- Payment processing, typically 2.5 to 3 percent of the sale price, which on thin margins is a substantial share of the profit.
- Packaging and fulfilment materials, plus pick-and-pack labour if you can attribute it.
- Expected shrinkage, returns, and spoilage as a percentage. A 5 percent return rate on non-resalable goods is a 5 percent cost increase across the line.
What a discount does to gross profit
Because margin is measured against price, a discount comes almost entirely out of profit, and the proportional damage is much larger than the discount looks.
At a 40 percent margin, an item costing $60 sells for $100 and returns $40 of gross profit. A 20 percent discount drops the price to $80 and the profit to $20 — a halving of gross profit for a fifth off the price. Recovering the same total profit requires selling twice as many units.
The lower the margin, the worse this gets. At a 25 percent margin the same 20 percent discount removes 80 percent of gross profit. At a 20 percent margin it eliminates it entirely, which is why blanket percentage-off promotions on low-margin categories can produce record revenue and no earnings at all. Working out the volume increase required to break even before running a promotion is a two-minute exercise that regularly changes the decision.
Gross margin is not profit
Gross margin covers only cost of goods. Rent, salaries, software, advertising, insurance, and everything else comes out of what is left, and net margin is generally a fraction of gross.
Typical territory: grocery retail runs 25 to 30 percent gross and 1 to 3 percent net. Restaurants run 60 to 70 percent gross on food and 3 to 6 percent net. Software runs 70 to 90 percent gross with net varying enormously by growth stage.
The practical use of that comparison is as a sanity check on pricing. If your category typically needs a 45 percent gross margin to cover its overhead structure, pricing to 30 percent is a decision to lose money at volume, whatever the top line says.
At a glance
| Margin | Gross profit divided by selling price |
|---|---|
| Markup | Gross profit divided by cost |
| Covers | Cost of goods only, not operating expenses |
| Transmitted | Nothing, cost data stays in the page |
Frequently asked questions
What is the difference between margin and markup?
Margin divides profit by selling price, markup divides it by cost. A $50 item sold at $100 is a 50 percent margin and a 100 percent markup.
Why can I not just add my margin to cost?
Because margin is a percentage of price. Adding 30 percent to a $50 cost gives $65, which is only a 23 percent margin. You need $71.43 for a true 30 percent.
How much does a 20 percent discount cost me?
At a 40 percent margin it halves gross profit. At a 20 percent margin it eliminates it. You need to double unit volume to hold profit flat in the first case.
Should packaging and processing fees be in cost?
Yes, if you want the margin to mean anything. Freight, duty, card processing of 2.5 to 3 percent, packaging, and expected returns all belong in landed cost.
Read more
Pricing and pay — Margin is not markup, a 20 percent discount can halve your profit, and a 40-hour week does not contain 40 billable hours.