Percentage Increase Calculator
Calculate the percentage increase between two values quickly. Input your original and new values to get instant results.
Calculate the percentage increase between two values, apply a percent increase to a number, or work backward from a final value to find the original.
Find Percentage Increase Between Two Values
Apply a Percentage Increase to a Value
Find the Original Value Before the Increase
What is a percentage increase?
A percentage increase measures how much a value has grown relative to its original amount, expressed as a percent. It is widely used in finance, business, and statistics to describe growth in prices, salaries, populations, or any quantity that changes over time.
Percentage Increase Formula
Percentage Increase = ((New Value − Original Value) ÷ |Original Value|) × 100
Example: If a price goes from 80 to 100, the increase is ((100 − 80) ÷ 80) × 100 = 25%.
Common use cases
- Salary raises and pay increases
- Price changes, markups, and inflation
- Sales growth and revenue comparisons
- Investment returns and portfolio gains
- Population, traffic, or audience growth
Frequently Asked Questions
Subtract the original value from the new value, divide the result by the absolute value of the original, and multiply by 100. Formula: ((New − Original) ÷ |Original|) × 100.
Percentage change covers both directions — increases and decreases — while percentage increase specifically describes growth from a smaller value to a larger one. The math is the same; the framing differs.
Yes. If a value more than doubles, the percentage increase is over 100%. For example, going from 50 to 150 is a 200% increase.
Divide the new value by 1 plus the percentage (in decimal form). For a 25% increase ending at 100, the original is 100 ÷ 1.25 = 80.
This calculator divides by the absolute value of the original to keep the sign of the change meaningful. Negative-to-positive transitions are typically described as percentage change rather than a clean increase.
