Investment
$
$
months
Optional: Ongoing Costs
$
$
ROI
—
return on investment
Net Profit
—
total gain
Annualized ROI
—
per year
Payback Period
—
to break even
📐 Formula: ROI = (Net Profit / Investment) × 100 · Annualized ROI = (1 + ROI/100)^(12/months) − 1 · Industry benchmark: marketing campaigns 200–400% ROI, real estate 8–12% annual ROI.