ROI Calculator

Calculate return on investment percentage.

Gain from Investment

Cost of Investment

How to Calculate

ROI = ((Gain - Cost) / Cost) × 100

Subtract the investment cost from the gain, divide by the cost, and multiply by 100.

Worked Example

Invested: £5,000, Returned: £7,500 → ROI: ((7500-5000)/5000) × 100 = 50%.

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