Result
ROMI
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This calculation is for informational purposes only and does not replace advice from a qualified professional. Formulas and rates may not fit your exact situation — double-check the figures before making decisions.
How it is calculated
ROMI = (incremental profit from marketing − marketing cost) ÷ marketing cost × 100%.
The key difference from ROAS is that ROMI is based on profit, not revenue. A campaign with a high ROAS can still show a negative ROMI if the product's margin is thin: revenue four times the spend says nothing about whether it paid off until the cost of goods sold through that revenue is accounted for.
As with ROI, the hard part is correctly isolating the profit that marketing actually caused, rather than profit that would have happened anyway (organic sales, repeat purchases from existing customers). Overstating that figure is the most common reason ROMI looks better than it really is.