Percentages and points

A percent is a number or ratio, expressed as a fraction of 100.

Percentages often describe shares or changes.

  • Say 15% of shirts are blue. That means: for every 100 shirts, 15 are blue.
  • An increase of £1 on a price of £4 is: 1/4, equal to 0.25. As a percentage, that is a 25% increase.

In one use, a percentage change is about the relative change between two values. Sometimes, we need to show changes…

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This blog looks at the use of statistics in Britain and beyond. It is written by RSS Statistical Ambassador and Chartered Statistician @anthonybmasters.

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Anthony B. Masters

Anthony B. Masters

This blog looks at the use of statistics in Britain and beyond. It is written by RSS Statistical Ambassador and Chartered Statistician @anthonybmasters.

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