How to calculate ROI
The basic formula is simple:
ROI = (Net Profit ÷ Cost of Investment) × 100
Here's how each part works, using the fields in the calculator above:
Net profit is the total profit your investment directly generated, after subtracting the direct costs of generating that revenue, but before subtracting the investment cost itself.
Say a new marketing campaign brought in $15,000 in sales, and the cost of goods sold for those new sales was $5,000. Your net profit from the investment is $10,000. That’s the number you’d enter in the “Net Profit” field.
Investment cost is the total amount you initially put into the investment, direct and indirect. For a new piece of equipment, that includes the purchase price, shipping, installation, and any training costs. For a marketing campaign, that includes ad spend, design fees, and agency commissions. That’s the number you’d enter in the “Investment Cost” field.