Here’s the rate of return (ROR) formula:
Rate of return = [(Current value − Initial value) ÷ Initial Value ] × 100
Let’s say you own a share that started at $100 in value and rose to $110 in value. Now, you want to find its rate of return.
In our example, the calculation would be [($110 – $100) ÷ $100] x 100 = 10
A rate of return is typically expressed as a percentage of the investment’s initial cost. So, if you were to sell your share, this investment would have a 10% rate of return.