Using a stock growth calculator, you may also calculate the average rate of growth between two points in time – quarterly or annually – using either linear or logarithmic methods.

If you bought a different number of shares with each trade, a simple average of the prices won't be accurate. Learn the right way to find average trade price.

To calculate a price-weighted average, or any arithmetic average for that matter, add the numbers (stock prices) together and divide by the number of stocks in the average.