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What is a percent and why is it out of one hundred?

The Percent Trick
What is a percent and why is it out of one hundred?
~~Here's a tiny word that runs the world:~~ ++percent++. It's hiding on your phone battery, on sale tags, on weather for

Here's a tiny word that runs the world: percent. It's hiding on your phone battery, on sale tags, on weather forecasts, on test scores. It looks fancy, but really it's just a clever way of answering one nosy little question — "out of the whole thing, how much?"

Imagine you and a friend each baked cookies. You ate 7 of yours, your friend ate 30 of theirs. Who feasted more? You can't tell yet — because you don't know how many each of you started with. Numbers alone are sneaky. They only mean something when you know the size of the whole pile.

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