Percentage Calculator
Quickly find a percentage of a number, what percent one number is of another, or a percentage change.
X% of Y = X ÷ 100 × Y. A is what % of B = A ÷ B × 100. Percentage change = (new − old) ÷ old × 100.
Results are estimates for planning and learning. Check important numbers against your own data and a qualified professional. Everything is calculated in your browser; nothing you enter is sent anywhere.