Blog
Guides, worked examples and tips around the tools on this site.
Percentage Points in the News: Five Real Headlines Decoded
Economic news lives on percentage points, but writers often say "percent". Here are five real patterns and what they actually said.
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Converting Fractions and Decimals to Percentages
Percent means per hundred. Any fraction or decimal becomes a percentage by scaling it to a denominator of one hundred.
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Compound Growth Without a Spreadsheet
Compound growth is multiplication repeated, and a couple of rules of thumb turn it into mental arithmetic good enough for planning.
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