ToolMint LogoToolMint
Ad Space (Leaderboard 728x90)

Percentage Calculator

Solve common percentage problems instantly. Calculate percentage of a number, percentage change, and reverse percentages.

What is
%
of
0

Formula Used

(15 / 100) × 100 = 0.00

Ad Space (Inline 300x250)

How to use Percentage Calculator

  1. Select the calculation mode from the tabs: 'What is X% of Y', 'X is what % of Y', or 'Percentage Change'.
  2. Enter your values in the input fields.
  3. The result is calculated automatically as you type.
  4. View the formula used below the calculator to understand the math.

Frequently Asked Questions

How do I calculate a percentage of a number?

To calculate X% of Y, multiply Y by X, then divide by 100. For example, to find 20% of 50: (20 * 50) / 100 = 10.

How do I calculate percentage increase?

Subtract the original value from the new value, divide the result by the original value, and multiply by 100. Formula: ((New - Original) / Original) * 100.

Can I calculate negative percentage change?

Yes. If the new value is smaller than the original value, the result will be negative, indicating a percentage decrease.

Is this tool accurate?

Yes, the calculator uses standard mathematical formulas to ensure 100% accuracy for all calculations.

Ad Space (Sidebar 300x600)

Related Tools