Percentage Increase Calculator

Use our percentage increase calculator to calculate percentage increase between two numbers instantly. Includes the percent increase calculator formula, step-by-step instructions, examples, and tips for finding percentage increase without a calculator.

Initial value
Enter the starting value.
Final value
Enter the ending value (must be ≥ initial).
Results
Increase (%)
Calculated as ((final − initial) / |initial|) × 100.
50%
Difference (Final value − Initial value): 0.5
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What is Percentage Increase?

Percentage increase measures how much a value goes up compared to its original (initial) value. It’s used for price increases, salary raises, growth metrics, and general performance improvements.

If you want to get percentage increase between two numbers, you’re comparing the change (final − initial) to the initial value. That’s what a calculate percentage increase calculator does.

This page explains what percentage increase means, how many percent increase calculator logic works, and the percent increase calculator formula you can use in any situation.

Percentage Increase Formula

To calculate percentage increase between 2 numbers, subtract the initial value from the final value, divide by the initial value, then multiply by 100.

Percentage increase =
% increase = ((final - initial) ÷ initial) × 100

Use this when the final value is greater than the initial value.

initial
= Starting value (original value)
final
= Ending value (new value)
final - initial
= Amount of increase (growth)
Example: calculate percentage increase between 2 numbers
Initial 80 → Final 100: ((100 - 80) ÷ 80) × 100 = 25%

So the value increased by 25%.

Example: what percentage increase?
Initial 50 → Final 65: ((65 - 50) ÷ 50) × 100 = 30%

So the value increased by 30%.

How to Calculate Percentage Increase Between Two Numbers

  1. 1

    Enter the initial value (the original number).

  2. 2

    Enter the final value (the new number after increasing).

  3. 3

    Subtract initial from final to find the increase amount (final − initial).

  4. 4

    Divide the increase amount by the initial value and multiply by 100 to get the percentage increase.

Frequently Asked Questions

What is percent increase calculator / what is percentage increase calculator?

It’s a tool that computes how much a value increased relative to the original value using % increase = ((final - initial) ÷ initial) × 100.

How to do percentage increase calculator?

Find the increase (final − initial), divide by the initial value, then multiply by 100.

How many percent increase calculator—how does it work?

It compares the increase amount to the original value: ((final - initial) ÷ initial) × 100.

How to calculate percentage increase between two numbers?

Use % increase = ((final - initial) ÷ initial) × 100.

Can I calculate percentage increase without a calculator?

Yes. Subtract to get the increase, then estimate the fraction of the initial value. Example: from 40 to 50 increases by 10; 10 is 1/4 of 40, so it’s about a 25% increase.

What is the percent increase calculator formula?

% increase = ((final - initial) ÷ initial) × 100.

What is a percentage rate increase calculator?

It’s another term for a percentage increase calculator—measuring the rate of increase relative to the original value.

What about a percentage growth calculator over time?

This calculator finds the percentage increase between two points in time. For growth over multiple periods, you’d calculate percent change for each interval or use compound growth calculations.

What if the final value is less than the initial value?

That’s a decrease. Use a percentage decrease calculator instead.

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