Percentage Change Calculator
When you need to check percentage Change, the Percentage Change gives you a useful starting point. Try a known example if you want to verify the answer.
Percentage change
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How it works
Change = (new − old) ÷ |old| × 100How to use the Percentage Change
Enter the requested values and start with one realistic example. Read the result together with its unit or label, then change one input at a time if you want to compare options.
Review the assumptions on the page and confirm any result that affects money, safety, technical work or another important decision.
Frequently Asked Questions
What does the Percentage Change Calculator do?
Find the percentage increase or decrease between two numbers.
What should I enter in the calculator?
Use the input labels as a guide and enter figures from the same situation, time period and units wherever possible.
Can I use the result as an exact answer?
Treat it as an estimate or check unless the page and the rules that apply to you confirm otherwise. Rounding, fees and personal details can change the final result.