Math
Percentage Calculator
Work out percentages, increases and decreases.
Calculated in your browser. Free, nothing is uploaded.
About this tool
Free percentage calculator tool. Work out percentages, increases and decreases. No signup, nothing uploaded.
Frequently asked questions
How precise are the results?
Double-precision floating point, accurate for everyday maths.
Is anything sent to a server?
No. All calculations run locally.
Can I see the steps?
Where shown, the tool includes the working.
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