What margin is a 50% markup?
A 50% markup is a 33.3% margin. To convert markup to margin, divide the markup by one plus the markup, in decimals: 0.5 / 1.5 = 0.333. To convert margin to markup, divide the margin by one minus the margin: a 40% margin is 0.4 / 0.6 = 66.7% markup, and a 60% margin is a 150% markup.