GCSE Maths (Edexcel)

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Introduction to Percentages

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Ratio, Proportion and Rates of Change Ratio, Proportion and Rates of Change

Introduction to Percentages

4:16 Introduction to Percentages
Spec R9
Previous Ratio as a Function Next Percentages & Decimals
  • A percentage is a way of writing a proportion as the number of parts per 100.
  • 0% means nothing is filled, while 100% means the whole thing is filled.
  • Percentages can be greater than 100 in certain situations.
  • Proportions can also be written using fractions and decimals.
  • Fractions represent the number of parts out of any number.
  • Decimals represent the number of parts out of 10, 100, 1000, etc.
  • Percentages are always the number of parts out of 100.
  • Percentages are widely used because they are easily understood by most people.
  • Percentages are commonly used in everyday life, such as in sales.

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