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Profit Margin

From WebStudio — a free PaperOS tool. No login, no uploads, no watermark.

Free forever · works offline · your files never upload.
Tool file
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

  1. Enter cost and selling price.
  2. Read margin and markup.
  3. Work backwards from target margin.
  4. 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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