What is ROI in cryptocurrencies?

ROI is an acronym for return on investment. The indicator is calculated as the ratio between the net profit of the investor and the cost of investment. ROI can be used to compare the multiple investment assets in a portfolio. ROI is calculated using the formula: (present value - initial cost of investment) / initial cost of investment. A positive index value means that crypto investments have made a profit, while a negative one indicates losses.