Tool Nova

Calculators

Percentage Increase Calculator

Calculate percentage increase or decrease instantly with this free online calculator.

Result

Increase: 20%

Original Value

100

New Value

120

Difference

20

Formula

((New Value - Original Value) / Original Value) × 100

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Why calculate percentage change

A percentage increase calculator helps you measure how much a value has risen or fallen compared with its original amount.

This is useful for prices, salaries, revenue, grades, population changes, and many other comparisons.

It turns a raw difference into a percentage, which makes changes easier to understand.

The same concept also works for decreases when the new value is lower than the original value.

This makes the tool useful for both business and personal calculations.

Common uses for a percentage increase calculator

  • Checking price changes
  • Measuring salary increases
  • Calculating revenue growth
  • Finding percentage decrease
  • Comparing old and new values clearly

Common percentage change examples

From 100 to 120 → 20% increase
From 80 to 60 → 25% decrease
From 50 to 75 → 50% increase

How this percentage increase calculator works

This calculator compares an original value and a new value to find the percentage change between them.

It can show both percentage increase and percentage decrease depending on whether the new value is higher or lower.

You can use it for prices, salary changes, growth rates, discounts, business reports, and everyday math.

Frequently Asked Questions

How do I calculate percentage increase?

Subtract the original value from the new value, divide by the original value, and multiply by 100.

Can this tool calculate percentage decrease too?

Yes. If the new value is lower than the original value, the calculator will show the percentage decrease.

Is this percentage increase calculator free to use?

Yes. Tool Nova provides this percentage increase calculator online for free with no sign-up required.