Percentage Increase Calculator
Find the percentage increase from a starting value to a new, higher value. Everything runs locally in your browser.
How it works
Subtract the original from the new value, divide by the original, and multiply by 100: ((new − old) ÷ old) × 100. For all three percentage modes, use the full Percentage Calculator.
Where you'd use this
Percentage increase is the language of pay rises, price changes, traffic reports and year-on-year growth. It is always measured against the original value, which is where most errors start.
For example: A rent rise from $450 to $495 a week is a 10% increase. Note that a 10% rise followed by a 10% fall does not return you to $450 — it lands at $445.50, because the fall is taken from the larger number.
FAQ
How do I calculate percentage increase?
((new − old) ÷ old) × 100. From 150 to 180 is ((180 − 150) ÷ 150) × 100 = 20%.
Is my data uploaded?
No — the calculation runs entirely in your browser.