Glossary · Phase 0 · Tools
Percentage
A share written out of 100: 25% means 25 out of every 100, which is 0.25.
Try it now
Drag the part and the whole. The decimal and the percent always say the same thing two ways.
Learn it properly
Fractions, ratios and rates · Shares, rates, percentage points and ratios, with Python doing the arithmetic. About 20 minutes.
Other terms from the same lesson
- fraction: A part of a whole, written as one number over another. 3/4 means 3 out of 4 equal parts, which is 0.75.
- percentage point: The plain difference between two percentages. Going from 4% to 5% is a rise of one percentage point, which is a 25% increase.
- ratio: A comparison of two amounts, such as 2 : 1. Keeping the ratio the same lets you scale a recipe or a mix up or down.
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