PRACTICAL GUIDEWhen to use this calculator
Switch between ROI, profit margin and break-even modes when assessing a campaign, product or small-business plan.
WORKED EXAMPLESee the calculation in context
An investment of 10,000 that becomes 12,500 has a 2,500 net return and a 25% ROI.
COMMON QUESTIONSFrequently asked questions
What is contribution per unit?
It is the selling price minus the variable cost for one unit.
Is margin the same as markup?
No. Margin divides profit by revenue, while markup divides profit by cost.
Should tax be included?
Use inputs that match the scope of your analysis and treat tax consistently.