Edexcel GCSE Mathematics · 1MA1

Percentages

What you need to know

Define percentage as ‘number of parts per hundred’.
Interpret percentages and percentage changes as a fraction or a decimal, and interpret these multiplicatively.
Express one quantity as a percentage of another.
Compare two quantities using percentages.
Work with percentages greater than 100%.
Solve problems involving percentage change, including percentage increase/decrease and original value problems.
Solve simple interest problems, including financial mathematics.

6 key terms