Percentage Increase Calculator
Work out the percentage increase between an original value and a new, higher value. Enter your two numbers below to get the percentage increase, the numerical increase and the full calculation shown step by step.
The percentage increase formula measures how much a value has grown relative to its starting point:
A salary rises from £150 to £200. The numerical increase is{' '} £{formatNumber(EXAMPLE.increase, 0)} , and the percentage increase is:
Percentage increase formula
Worked example
Frequently asked questions
How do I calculate percentage increase?
Subtract the original value from the new value, divide by the original value, then multiply by 100. The formula is ((New − Original) ÷ Original) × 100. For example, a rise from 150 to 200 is ((200 − 150) ÷ 150) × 100 ≈ 33.33%.
What is the percentage increase formula?
Percentage increase = ((New Value − Original Value) ÷ Original Value) × 100. The original value cannot be zero, because you divide by it.
What does a negative percentage increase mean?
A negative result means the new value is lower than the original, so it is really a percentage decrease. The calculator highlights this for you.
How is percentage increase different from percentage difference?
Percentage increase has a clear original and new value, and is directional. Percentage difference is symmetric — it compares two values without treating either as the starting point.
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