Math tool
Percentage Calculator
Solve percentage-of, percentage-share, percentage-change and increase or decrease questions with clear formulas.
RESULT
Your result will appear here.
USING THIS TOOL
How Percentage Calculator helps
Choose the exact percentage question instead of trying to adapt a single confusing formula.
Method and assumptions
For X as a percentage of Y, calculate (X ÷ Y) × 100. For X% of Y, use Y × X ÷ 100.
Example
25% of 200 is 50. A rise from 80 to 100 represents a 25% increase.
Know the limits
Check your inputs and verify important financial, health, legal, educational or property decisions using the relevant professional or official source. Results depend on stated assumptions.