How Each Percentage Calculator Works
What is X% of Y?
Multiply the percentage by the number and divide by 100.
X is what % of Y?
Divide X by Y and multiply by 100 to find the percentage.
Percentage Increase or Decrease
Calculate the difference between values and divide by the original.
Discount Calculator
Subtract the percentage discount from the original price.
Tip Calculator
Add a percentage-based tip to your total bill.