Question: how to calculate growth percentage over 3 years?
Answer: Calculating three-year growth First, take the ending sales figure and divide it by the beginning sales figure. In our case that would be $45 million / $30 million, or 1.50 (if this was a simple one-year calculation we'd be done at this point: sales growth was 1.5 – 1 = 0.5, or 50%).