Markup Calculator

Markup prices forward. You start with what a unit cost you, add a percentage of that cost, and arrive at a shelf price. This calculator does that and then tells you the margin the resulting price actually delivers, because those are the two numbers a pricing conversation needs.

Cost plus a percentage

An item costing 80 with a 25% markup:

• Gross profit: 20
• Selling price: 100
• Resulting margin: 20%

Selling price = cost × (1 + markup ÷ 100)

Note the pair at the end. A 25% markup yields a 20% margin, not a 25% one. The markup is a share of the 80 cost; the margin is a share of the 100 sale. Every markup produces a smaller margin, and the two only converge at zero.

Working backwards from a target margin

Most pricing targets are set as margins — a category manager wants 40% — while most purchasing systems apply markups. The conversion is:

markup % = margin ÷ (100 − margin) × 100

To hit a 40% margin you need a 66.67% markup. To hit 60%, you need 150%: cost 18, markup 150%, price 45, margin 60%. Applying the target margin as a markup instead is the error that quietly costs shelf-price accuracy across an entire catalogue.

Keystone and why it survives

Doubling cost — a 100% markup, giving a 50% margin — is the traditional retail default. It persists not because 50% is a magic number but because it leaves room for the things that come after the shelf price: markdowns at the end of a season, shrinkage, returns, and the discounts a sales team will inevitably grant. A category priced for exactly the margin it needs has no room for any of that.

What the price you get out does not cover

The markup is applied to the unit cost you enter, and that is all it knows about. Sitting outside the calculation:

• Payment processing. Card and platform fees of a few percent come off the sale price, not the cost, so they reduce the realised margin directly.
• Fulfilment. Picking, packing and outbound shipping, where you absorb it.
• Returns. A category with a 20% return rate needs a materially higher markup than one with 2%, and neither the returns nor the restocking cost appear here.
• Marketing. Customer acquisition cost is an operating expense but it behaves like a cost of sale in most online businesses.
• Volume effects. Unit cost usually falls with quantity. A single fixed cost input cannot represent a tiered supplier price list.

The output is a starting price, not a decision. What the market will bear is a separate question, and a markup that produces an uncompetitive price is a signal about the cost base rather than a price to publish.

The rest of the pricing set

To go the other direction — from a known cost and price to the margin they imply — use the profit margin calculator. To check how deep a promotion can go before the margin disappears, use the discount calculator. To find the volume that covers your fixed costs at the price you have set, use the break-even calculator.