Oftentimes, the predicted amount does not turn out to be the actual amount. The excess of the actual amount can be measured as a percentage or a raw number. However, the percentage is often the better measure because it is based on the original projection, so the reader has a context. For example, you might want to find the percentage a project's final cost is over its estimated cost or the percentage by which a batter's home run total exceeded projections.
Instructions
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1
Subtract the original amount from the final amount to find the overage. For example, if a car repair was supposed to cost $800 but ended up costing $920, subtract $800 from $920 to get $120.
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2
Divide the overage by the original projection. In this example, divide $120 by $800 to get 0.15.
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3
Multiply the result by 100 to find the overage percentage. Completing the example, multiply 0.15 by 100 to get an overage of 15 percent.