This calculator measures investment return for business owners, managers, and anyone comparing where money might work hardest.
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Enter the initial cost and the final value or total gain from the investment. Include related expenses and use the same time period for every option you compare.
ROI percentage = (net gain / investment cost) × 100, where net gain = final value - investment cost. If income and expenses occur along the way, net gain equals total income plus final value minus all investment costs.
A business spends $12,000 on equipment and receives $16,500 in added profit after operating costs. The net gain is $4,500, so ROI = ($4,500 / $12,000) × 100 = 37.5%.
Basic ROI does not distinguish between a return earned in six months and the same return earned in six years. Use annualized ROI or internal rate of return when timing matters.
Include purchase costs, fees, maintenance, labor, financing, and other expenses caused by the investment. Leaving out inconvenient costs makes the result cleaner, but not more useful.
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