Enter your cost and the margin or markup you want, and get the price to charge. The reverse of a margin calculator.
Working forwards from a cost to a price. A margin can never reach 100% (that would need an infinite price), so a target margin is bounded; a markup isn't. If you think in "I want to double my money", that's a 100% markup (= 50% margin).
Set your price once; Retainer carries it from proposal to signed contract to invoice unchanged. Try Retainer free