Our percentage calculator handles all three types of percentage calculations instantly. Find what X% of Y is, calculate what % one number is of another, and compute percentage increase or decrease.
Advertisement
📢 Google AdSense 468×60
Percentage Formulas
X% of Y = Y × X / 100 X is what % of Y = X / Y × 100 % Change = (New − Old) / Old × 100
15% of 200 = 30 30 is what % of 200 = 15% 80 to 100 = +25% increase
Frequently Asked Questions
Multiply the number by 0.20. For example, 20% of 500 = 500 × 0.20 = 100. Or simply divide by 5.
% Increase = ((New − Original) / Original) × 100. For example, 80 to 100: ((100−80)/80) × 100 = 25% increase.