Percentage Increase Calculator – Calculate Percent Increase

How to Use the Percentage Increase Calculator

Enter the original value and the higher new value to calculate the percentage increase.

Practical Example

If revenue rises from USD 800 to USD 1,000, the increase is 25%.

Factors That Affect the Result

The original value is the reference denominator. Reversing the inputs changes the meaning and a zero starting value makes standard percentage increase undefined.

Frequently Asked Questions

Can the result exceed 100%?

Yes. Large increases can exceed 100%.

Does order matter?

Yes. Enter the starting value first.

What if the original value is zero?

Standard percentage increase is undefined.

Related Tools

• Percentage Decrease Calculator
• Percentage Change Calculator
• Percentage Difference Calculator
• Reverse Percentage Calculator
• Percentage Calculator

How Percentage Increase Works

Percentage increase measures how much a value has grown relative to its original amount. The standard formula is ((new value − original value) ÷ original value) × 100. If a price rises from 80 to 100, the increase is 20 and 20 ÷ 80 × 100 = 25%. The original value is always the denominator, which is why reversing an increase does not use the same percentage. A 25% increase from 80 gives 100, but reducing 100 by 25% gives 75. This distinction matters when comparing prices, revenue, traffic, salaries, measurements, or other values over time. Use values from the same unit and period, and remember that an original value of zero cannot produce a conventional percentage increase because division by zero is undefined.

Increase, Multiplier and Percentage Points

A percentage increase compares growth with the original value. The growth multiplier is new value ÷ original value, so a 25% increase corresponds to 1.25×. When comparing values that are themselves percentages, also distinguish percent increase from percentage-point change: moving from 20% to 25% is a 5-point rise but a 25% relative increase.