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how do you calculate percentage change over multiple years. If you want to say what the percentage increase is from 1995 to 2007 it is 160 30 30 433. So its the right method ie 83 7 56 31 1 0 43 50 56 31 44 104 130.
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The overall percent change can then be calculated from the new value and the original base value. An individual calculates year-over-year percentage change or YOY change by evaluating two or more measurements and comparing them to the same period of time in a previous year. Fifth multiply 0061 by 100 to find the average annual return over the 10 years is 61 percent.
Year-over-year YOY is an effective way of looking at growth for two reasons.
Percentage change over all years. Subtract 2008 sales from current 2010 sales. It compares results from the current year to a previous period of time which is usually evaluated on a monthly or quarterly basis. Then divide that result by the old value.
