Margin Calculator

What Is a Margin Calculator?

A margin calculator works out the relationship between four numbers that every priced product has: cost, selling price, profit, and margin. Enter any two and it solves for the other two. This page also does the thing most margin calculators skip: it shows the equivalent markup, so you can see at a glance how a margin percentage and a markup percentage describe the same sale in two different ways.

Gross margin % = (Revenue − Cost) / Revenue × 100

If a product costs $40 and sells for $100, the profit is $60 and the gross margin is 60%. The same sale carries a 150% markup, because markup measures that $60 profit against the $40 cost instead of the $100 price. More on that gap below, because it is the single most expensive point of confusion in pricing.

Profit Margin Calculator: Gross, Operating, and Net

"Profit margin" is not one number. This tool calculates gross margin, profit after the direct cost of the product only. Two other margins sit below it:

• Gross margin subtracts the cost of goods sold (COGS): the product, inbound freight, and anything else it costs to make the unit sellable. This is what the calculator above returns.
• Operating margin also subtracts operating expenses: salaries, software, rent, overhead.
• Net margin subtracts everything else too, taxes, interest, one-off costs, and is what actually reaches the bank.

For an ecommerce brand the most useful working number sits between gross and net: contribution margin, which takes gross margin and subtracts the variable costs of selling one more unit, shipping, payment fees, discounts, returns, and ad cost. A 60% gross margin can become a 25% contribution margin once those are counted. If you want that fuller number, use the contribution margin calculator, and see gross margin and net profit margin for the definitions.

Markup vs Margin: the Difference That Costs Money

Markup and margin use the same profit but different denominators:

• Margin = profit ÷ revenue
• Markup = profit ÷ cost

Because cost is always smaller than revenue, markup is always the larger percentage. A 50% margin is a 100% markup. A 40% margin is a 67% markup. A supplier who tells you to "add a 40% markup" is not handing you a 40% margin, you would land at roughly 29%.

Gross margin	Equivalent markup
20%	25%
33%	50%
40%	67%
50%	100%
60%	150%

The mistake happens when someone sets prices by markup, then reports the business by margin, and quietly assumes the two numbers are the same. On a full catalog, that assumption can wipe out the profit you thought you were making. Set the price with the markup calculator, then confirm the margin here.

How to Calculate Gross Margin

1. Add up the cost of goods sold for the product: the unit cost plus inbound freight and any per-unit fees to get it sellable.
2. Subtract that cost from the selling price to get gross profit.
3. Divide gross profit by the selling price and multiply by 100.

Gross margin % = (Price − COGS) / Price × 100

A $28 product that costs $12 to make has $16 of gross profit and a 57% gross margin. Enter any two of those figures above and the calculator returns the rest, plus the markup.

Worked Ecommerce Example

A skincare brand sells a serum for $48. The formula, bottle, and inbound freight cost $16.80.

Input	Value
Selling price	$48.00
Cost of goods	$16.80
Gross profit	$31.20
Gross margin	65%
Equivalent markup	186%

A 65% gross margin looks comfortable. But this brand also pays a $6.50 pick-and-ship cost, roughly $1.40 in payment fees, and acquires the customer for about $14 in ad spend. After those variable costs, the $31.20 of gross profit becomes about $9.30 of contribution, a 19% contribution margin, not 65%. The gross margin is real, but it is the ceiling, not the take-home. That gap between the headline margin and the money left over is exactly what Daymark is built to keep visible.

What Is a Healthy Margin?

There is no universal target, because margins vary widely by category. As rough gross-margin reference points for consumer brands:

• Apparel and accessories: often 55% to 65% gross.
• Beauty and supplements: frequently 65% to 80% gross, because unit costs are low.
• Food and beverage: commonly 30% to 45% gross.
• Electronics and hardware: often 20% to 40% gross.

The number that matters more than the benchmark is whether your margin covers your cost to acquire and serve a customer with enough left over to grow. A 70% gross margin brand that spends 55% of revenue on ads is thinner than a 40% gross margin brand that acquires customers cheaply. Always read gross margin next to contribution margin and customer acquisition cost, not on its own.

What a Margin Calculator Leaves Out

Margin is profit as a share of price; markup is profit as a share of cost. Gross margin covers COGS only; net margin covers everything. A margin calculator gives you the clean gross figure fast, but the profit that reaches your account depends on the variable costs it does not include. To connect price, cost, and every downstream cost into one live number, see how Daymark pulls Shopify, ad platforms, and shipping data together in plain English.