Calculate how much a value has grown in percentage terms between two values
Use this free Percentage Increase Calculator to quickly determine the percentage growth between two values. Perfect for financial analysis, academic scores, product prices, business metrics, and more.
To find the percentage increase:
Formula:
((New Value – Original Value) / Original Value) × 100
If a product's price increases from $50 to $65:
((65 – 50) / 50) × 100 = 30%
So, the price increased by 30%.
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Percentage increase answers one question: by what percentage did a value grow, relative to where it started? The starting point is what makes it fair. A $15 rise means little on its own — it is a 30% jump on a $50 item and a rounding error on a $50,000 salary — so the increase is always expressed against the original value:
Percentage increase = ((New Value − Original Value) ÷ Original Value) × 100
This calculator takes the original value and the new value and returns the percentage increase, with the absolute increase — the plain difference between the two numbers — shown alongside it, because the two figures answer different questions and are most useful together. One rule is built in: the original value cannot be zero, because growth from nothing cannot be expressed as a percentage.
A product's price rises from $50 to $65: ((65 − 50) ÷ 50) × 100 = a 30% increase, with an absolute increase of $15. A salary moving from $3,200 to $3,520 a month is ((3,520 − 3,200) ÷ 3,200) × 100 = a 10% increase — the figure to quote in a review meeting, rather than the $320 on its own. And a website growing from 850 to 1,105 visitors a month has gained ((1,105 − 850) ÷ 850) × 100 = a 30% increase, which is why reports describe traffic, sales and scores in percentages: the same formula fairly compares growth of any size.
This page deliberately covers the increase on its own. Everything runs in your browser; nothing is saved or tracked. Free, with no sign-up.
Related: if the value went down instead, or the direction could be either way, use the Percentage Change Calculator; for a fall expressed as a positive percentage, the Percentage Decrease Calculator; and for comparing two values where neither is the starting point, the Percentage Calculator includes percentage difference.
Subtract the original value from the new value, divide the answer by the original value, then multiply by 100: ((New − Original) ÷ Original) × 100. A rise from $50 to $65 is a 30% increase.
Then the result is negative — the value has decreased, not increased. For a fall described either way, use the Percentage Change Calculator; for a decrease expressed as a positive figure, use the Percentage Decrease Calculator.
No. A percentage increase needs a starting value to grow from, and division by zero is undefined — the calculator asks for a valid original value if you enter 0.
The plain difference between the two values, before it is turned into a percentage — $50 to $65 is an absolute increase of $15 and a percentage increase of 30%. The calculator shows both.