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Percentage change

How much a number grew or shrank, as a percent of where it started.

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From 80 to 100 is a 25% rise: the 20 you gained divided by the 80 you began with. Going back from 100 to 80 is a 20% fall, because the base is now different.

Ratio also reads “20% of 150”, “150 + 20%” and “50 is what % of 200”.

In Ratio

You typeRatio shows
change(80, 100)25%
150 + 20%180
150 - 10%135
50 is what % of 20025%

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