Percentage and discount calculator
Discounts, markups, shares and changes, typed the way you would say them.
Output
Paste or type above to see the result here.
Your files stay on your device
This tool runs entirely in your browser. What you paste is processed on your device and is never sent to a server, so it is safe to use with tokens, keys and unpublished text.
How it works
- Type a calculation on each line: 20% off 3000, 3000 +10%, 20% of 3000.
- For a change between two numbers, put an arrow between them: 3000 → 2400.
- For what share one number is of another, divide: 600 / 3000.
Frequently asked questions
- What can I type?
- A discount (20% off 3000, 3000 -20%), a markup (3000 +10%), a share (20% of 3000), a change (3000 → 2400) or a ratio (600 / 3000). Currency signs are ignored.
- Is 20% off then 10% off the same as 30% off?
- No: it is 28% off, because the second discount is taken from the lower price. Type the two lines one after the other to see it.
- Is anything sent anywhere?
- No. It is worked out in your browser as you type.
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