Profit Margin
From WebStudio — a free PaperOS tool. No login, no uploads, no watermark.
Free forever · works offline · your files never upload.
| Price | Free forever |
|---|---|
| Login | None |
| Offline | Yes, after first load |
Cost versus selling price — margin and markup instantly, so no sale ever runs at a hidden loss. Open Profit Margin now →
How to use it
- Enter cost and selling price.
- Read margin and markup.
- Work backwards from target margin.
- Free, offline, at the counter.
Why people pick PaperOS
- Margin + markup both ways
- Target-margin reverse math
- Shop-counter fast
- Works offline
Questions
Margin vs markup — which is which?
Margin is profit over selling price; markup is profit over cost. The tool shows both.
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