ECOMMERCE / BUSINESS STUDIO
Margin Desk
Revenue looks good. Contribution tells you more.
Compare product contribution after costs, transaction fees, return assumptions and acquisition spend.
Built for independent ecommerce brands and product sellers.
THE ACTUAL WORKSPACE
See what you’ll work with.
Fictional sample data. No customer records.
Captioned screenshot walkthrough of the workspace. This is an explanatory demo, not a continuous screen recording.
YOUR WORKFLOW
From inputs to a usable next step.
- Enter each product and its landed cost. All values must use the same currency.
- Supply actual fees and a reviewed included-tax assumption.
- Model expected returns conservatively. Product and outbound costs remain spent after returns in this version.
- Review break-even acquisition and after-ad contribution. Repeat with changed assumptions before decisions.
In your download.
- Editable offline HTML/JavaScript workspace
- Fictional samples and example outputs
- Quick-start PDF and usage license
- JSON backup/import and result exports
Know the limits.
Scenario arithmetic only. No live shop connection, current platform-fee feed or jurisdiction-specific tax engine.
No runtime AI inference or subscription. Optional local storage is unencrypted. Desktop Chrome/macOS is the tested environment.

