Percentage Calculator
Four calculations in one
- X% of Y: 18% of 2,500 is 450.
- What % X is of Y: 450 is 18% of 2,500.
- Percentage increase from X to Y: 80 to 100 is a 25% increase.
- Percentage decrease from X to Y: 100 to 80 is a 20% decrease.
Increase and decrease use the starting value as the base, which is why 80→100 and 100→80 give different percentages.