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What is the percentage increase/decrease from 100 to 10?

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Here is the solution. What is the percentage increase/decrease from 100 to 10?

You want to know the answer to this question: What is the percentage increase/decrease from 100 to 10? This type of percentage calculation is most commonly used when you want to describe the relationship between two values. For example, you know how much money you had in the bank 5 years ago and how much you have now, and you would like to calculate the percentage change. This, of course, could be an increase or a decrease, as well.

1. We use the following formula: \(\text{Percentage change}\) = \({Y-X \over X} \cdot 100\%\)

2. \(X = 100\)


3. \(Y = 10\)


4. \({Y-X \over X} \cdot 100\%\) = \({10-100 \over 100}*100\%\) = \({-90 \over 100}*100\%\) = \(-0.9*100\%\) = \(-90\%\)

So now you know the answer! What is the percentage increase/decrease from 100 to 10? -> -90%!

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