Finance
Markup vs Margin
Markup is over your cost. Margin is over your sale price. They're not the same number — mixing them up costs people money every day.
FAQ
Why does this matter? +
A "50% markup" gets you 33% margin. A "50% margin" requires 100% markup. People confuse these and price wrong.
Which should I use? +
Retail and most service businesses think in margin. Contractors and trades often think in markup. Just be consistent and convert when needed.