This key facts covers What Are Percentages? within Percentages for GCSE Mathematics. Revise Percentages in Number for GCSE Mathematics with 14 exam-style questions and 22 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 2 of 16 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
What Are Percentages?
- Percentage: Parts per hundred (percent = per cent = per 100)
- Symbol: % means "out of 100"
- 100%: The whole amount (all of it)
- 50%: Half (50 out of 100)
- 200%: Double (twice the original)
Practice questions for Percentages
Which calculation correctly finds 35% of £240 using the decimal method?
Which formula correctly expresses one quantity as a percentage of another?
Quick recall flashcards
Percentage to decimal
Divide by 100
75% = 0.75
8% = 0.08
150% = 1.5
Move decimal point 2 places left
What is a percentage?
Parts per hundred
Percent = per cent = per 100
% symbol means 'out of 100'
50% = 50/100 = half