Markup and Margins - Understand the Difference with This Handy Calculator
This calculator lets you calculate two separate prices and compare them, so you can be sure you are maximizing your profits. Let's give you an example; you know you want to have a profit margin of anything between 35% and 40%. The object costs you $100, so you need to set your price between $153.85 and $166.67. You can set both margins (or both markups) to auto save to speed up the process if you're dealing with hundreds of items. Just enter the cost and you'll have your min and max prices!
Markup and Margin - Two Set Comparison