Percentage Calculator
Solve the three most common percentage problems.
Result
30
How it's calculated
"X% of Y" multiplies Y by X ÷ 100. "X is what percent of Y" divides X by Y and multiplies by 100. Percent change from X to Y is (Y − X) ÷ |X| × 100.
Solve the three most common percentage problems.
Result
30
How it's calculated
"X% of Y" multiplies Y by X ÷ 100. "X is what percent of Y" divides X by Y and multiplies by 100. Percent change from X to Y is (Y − X) ÷ |X| × 100.