Percentage guides
Short explanations with worked examples, matching what the calculator does.
Calculators
Guides
- How to calculate percentagesThe four calculations, with worked examples.
- Percent vs percentage pointsWhy 4% to 6% is both "2 points" and "50% more".
- Why a rise and a fall do not cancelThe base changes, so the result does not return.
- How our percentage calculator worksFormulas, rounding and privacy, step by step.