Percentages express a part per hundred; the same two numbers answer a portion, a proportion and a change.
Percentage Calculator
Three common percentage answers from two numbers.
How it works
X% of Y = X ÷ 100 × Y; change = (Y − X) ÷ |X| × 100
Frequently asked questions
Percentage points vs percent?
10% to 12% is a 2 point rise but a 20% increase — not the same.