iLikeTool
HomeAll ToolsCategoriesDeveloper ToolsAboutContact
Numbers / Calculators

Percentage Calculator

Calculate a percentage of a number, compare values, or find a percentage increase or decrease.

Basic Percentage

% of

Percentage of Total

of

Percentage Increase/Decrease

to
Instructions and FAQs

Instant Result

Get your math answers in milliseconds without page reload.

High Precision

Accurate calculations up to multiple decimal places.

Mobile Ready

Use on any device. Completely responsive and touch-friendly.

How to use Percentage Calculator?

Percentages are everywhere—from shopping discounts to school marks and business growth. iLikeTOOL provides a simple way to calculate these values without complex formulas.

  1. Choose the type of calculation you need (Basic, Percentage of Total, or Increase/Decrease).
  2. Enter the required numbers into the input boxes.
  3. Click the Calculate button to see the result instantly.
  4. Use the Reset button if you want to clear all inputs and start fresh.

Formula used in Calculations

  • Percentage Value: (Percentage / 100) × Total Value
  • Percentage of Value: (Value / Total) × 100
  • Percentage Change: ((New Value - Old Value) / Old Value) × 100

Frequently Asked Questions

Is this calculator accurate?

Yes, our tool uses standard mathematical formulas and provides results accurate up to 2 decimal points (or more if needed).

How to calculate percentage increase?

To calculate percentage increase, subtract the initial value from the final value, divide the result by the initial value, and multiply by 100.

Can I calculate negative percentages?

Yes, if the final value is lower than the initial value in the "Increase/Decrease" section, the result will be a negative percentage (representing a decrease).

Is my data private?

Absolutely. All calculations happen inside your browser. No data is sent to our servers.

HOW TO USE

Solve percentage problems

Use the three forms: percentage of a number, what percent one value is of another, and percentage change.

Example

20% of 150 is 30; 50 to 65 is a 30% increase.

Before you use the result

Check which form matches your question before reading the result.