Percentage Calculator

percentage calculator image Looking for a percentage calculator? Find most common types of percentage calculations below. A+!

What is the percentage increase from X to Y?

For example, you got the rent increase notice from the landlord that your rent will increase from $500 to $550 per week next year. So 500 is X and 550 is Y in this case. What percentage did your rent increase? If you enter the numbers in below, you will see that your rent went up 10%. It’s a little bit excessive, isn’t it?
If you are calculating the percentage decrease from $550 to $500, then X=550 and Y=500


How to calculate “What is the percentage increase or decrease from X to Y?”.

  • For the increase use the following formula: ((Y – X) / X) * 100.
  • For the decrease use the following formula: ((X – Y) / X) * 100.

X is what percent of Y?

For example, You are shopping for a car and the car salesman gave you $1000 off the car you bought for $30,000. In this example X=1000 and Y=30000. If you enter the numbers in below, you will see that he gave you just a 3.33% discount. Not really a good deal!


How to calculate “X is what percent of Y”? Use the following formula: (X / Y) * 100




What is X percent of Y?

For example: The dress, shoes or pants you have been dreaming about are $75, and they are on sale at 30% off this weekend. How much do you save? Using this example X=30 and Y=$75. If you enter the numbers in below, you will see that you save $22.50.

How to calculate “What is X percent of Y”? Use the following formula: (X * Y) / 100

How to use these percentage calculators

If you see a 30% discount on your favorite shoes, dress or pants, use “What is X percent of Y” to calculate how much of the discount you will receive in dollars.

Got rent increase? Want to check if it’s according to regulations? Enter old rental price and new rental price into “% Increase or Decrease” calculator and work out percentage increase.

Use these percentage calculators to solve your percentage problems