Worked example
Here is a simple ROI example:
(15,000 − 10,000) ÷ 10,000 × 100 → 50%.Return on Investment Calculator
Measure net gain, total ROI, and an annualized comparison rate.
Net gain€3,500.00
Total return€13,500.00
Annualized ROI35%
Does not account for risk, inflation, or timing of cash flows.
Practical guide
Return on Investment Calculator
Common mistakes to avoid
- Include all meaningful costs.
- Use total return, not only revenue.
- Compare investments with similar risk.
Frequently asked questions
What does the ROI calculate?
Measure net gain, total ROI, and an annualized comparison rate.
Which formula is used?
ROI = (total return − investment) ÷ investment × 100
Can I rely on this result?
Use the result as a planning estimate. Check important financial, tax, legal, investment, or health decisions with a qualified professional.