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View all comments 23 points
It’s really pretty simple - if something increases by 80%, you add 80% of whatever it already is… one dollar becomes $1.80… one percent becomes 1.8 percent.
Most people don’t understand it because they’ve seen it done wrong so often, the wrong way seems right.
25 points
I’m quite willing to bet that 70% of the population has no clue that percentages, fractions, and decimals are the same thing.
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