Markup vs Margin Fixer

Add 30% to a cost of $1,000 and you get $1,300. Take 30% as your margin and the price is $1,428.57. Same percentage, same cost, $128.57 apart — and the first one is only making 23.1%, not the 30% the person doing it believes.

That mistake never announces itself. Nothing breaks, no invoice bounces, the customer pays. It just quietly removes a slice of every job for years, and shows up only as a business that is always busy and never has any money.

Type your cost and your percentage. This shows both prices, what each is really earning, the gap in money, and the markup you would need to add in order to actually earn the margin you meant.

There is also the conversion table, once, so you never have to work it out again. The two figures only agree at zero, and the gap widens fast: a 50% margin needs a 100% markup.

This tool is free and stays free. Nothing is held back from it and there is no upgrade inside it. If it is useful, the Contractor Job Profit Calculator does the whole job — burdened labour, overhead recovery, break-even, and the warnings that catch the rest of the pricing mistakes this one is a single example of.

One HTML file, no account, no internet needed.