Math Calculators
Percentage Calculator
Calculate percentages, percentage change, and percentage of total. Three calculators in one.
What is X% of Y?
Result
30
X is what percent of Y?
Result
20%
Percentage change from X to Y
Change
+20%
Frequently asked questions
How do I calculate percentage change?
Subtract the old value from the new, divide by the old value, then multiply by 100. A positive number means an increase, negative means a decrease.
What is the difference between percent and percentage point?
A percent change is relative. A percentage point change is absolute. Going from 10% to 12% is a 2 percentage point increase but a 20% relative increase.