Percentage Calculator

Free online Percentage Calculator. Solve "X% of Y", "X is what % of Y", and percentage increase/decrease instantly in your local browser.

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How to Use Percentage Calculator

  1. For Value calculation: Enter percentage X and total value Y.
  2. For Ratio: Enter numerator X and denominator Y to find the percentage.
  3. For Change: Enter initial value X and target value Y to find percentage increase or decrease.

The Practical Importance of Percentages

Percentages are used daily for calculating discounts in stores, comparing quarterly company returns, estimating salary hikes, and calculating interest rates on loans.

Frequently Asked Questions

How do you calculate a basic percentage?
A percentage is a fraction out of 100. To find X% of Y, the formula is: (X × Y) / 100.
How do you calculate percentage change?
Subtract the old value from the new value, divide the difference by the old value, and multiply the result by 100.