All the Math You'll Ever Need, 3rd Edition

14Percentages

Have you ever wondered what a percent is? You hear the word a lot, but what is a percent? It's a number that communicates the idea of a part of a whole, much the way a fraction or decimal does, but in a way that makes comparison easier. Which is larger, or ? Oh, wait, not sure? Which is larger, 32% or 33%? Simple, right? The term percent means “out of a hundred” and percents basically change fractions to have a denominator of 100, even if the numerator doesn't come out tidy.

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