This key facts covers Key Percentage Conversions 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 3 of 16 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Key Percentage Conversions
| Percentage | Decimal | Fraction | In Words |
|---|---|---|---|
| 100% | 1.0 | 1 | All/Whole |
| 50% | 0.5 | 1/2 | Half |
| 25% | 0.25 | 1/4 | Quarter |
| 75% | 0.75 | 3/4 | Three quarters |
| 10% | 0.1 | 1/10 | Tenth |
| 1% | 0.01 | 1/100 | Hundredth |
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
What is a percentage?
Parts per hundred
Percent = per cent = per 100
% symbol means 'out of 100'
50% = 50/100 = half
Percentage to decimal
Divide by 100
75% = 0.75
8% = 0.08
150% = 1.5
Move decimal point 2 places left