Profit Margin Calculator Guide

What This Calculator Does

Calculate per-item profit, margin and markup after entered product cost, shipping, fixed fees and percentage selling fees. Target-margin mode solves the selling price instead. This product-pricing task is separate from the trading margin calculator.

When to Use It

Use it for per-item pricing scenarios. Enter your actual cost and fee assumptions; no platform schedule is supplied. For simple percentage and markup arithmetic see percentage. The page does not produce business financial statements.

Inputs Explained

Product, shipping and fixed selling costs are non-negative, each at most 1e12. Percentage fees apply to entered selling price and must be from 0% to below 100%. Selling price must be positive and at most 1e15. Target margin must be non-negative and below 100%, with fee rate plus target below 100%. Target mode also requires positive combined fixed costs.

How the Calculation Works

Let A=product cost+shipping+fixed fee, f the fee rate, and P selling price. Total cost=A+P×f. Profit=P−total cost. Margin=profit/P. Markup=profit/total cost. For target margin m, P=A/(1−f−m). Break-even price=A/(1−f). Divide entered percentages by 100 to obtain f and m.

Example

Cost 60 and selling price 100 with no other fees gives profit 40, margin 40% and markup 66.6667%. Add shipping 5, fixed fee 2 and a 10% selling fee: total cost=60+5+2+10=77, profit=23 and margin=23%. To reach a 30% margin with those costs and fee rate, price=67/(1−0.1−0.3)=111.6667.

How to Understand the Result

Margin uses selling price as the denominator. Markup here uses all entered costs, including percentage selling fees. Negative profit remains visible as a loss. Zero total cost leaves markup undefined but margin calculable. This after-entered-cost profit is not automatically accounting gross profit or company net profit.

Common Mistakes

Do not confuse a 30% markup on cost with a 30% margin on revenue. Fees apply only to the entered item price, without taxes, customer-paid shipping or tier schedules. The shipping field is your cost, not shipping revenue. Allocate per-order fixed fees appropriately before entering a per-item number.

FAQ

Can I solve a target selling price?

Yes. Target margin plus fee rate must be below 100%, with positive fixed costs.

Is this gross or net profit?

It is a per-item scenario after your entered costs, not a complete accounting classification.

What if costs are zero?

Price mode still calculates profit and margin; markup is undefined. Target mode requires positive fixed costs.

Notes

Shopify’s margin tool explains the different denominators for margin and markup. This calculator additionally incorporates your entered selling fees. Taxes, refunds, ads, returns and overhead are not added automatically. All costs need the same currency; the selector labels amounts without conversion. Up to four decimals are displayed. Recheck after rounding a quoted price to the currency’s smallest unit. Inputs are not persisted.