🧮
ROI Calculator
Sliders in, a payback chart out, for proposals and sales pages.
BusinessFreeWidgetv1.0.1
🛍️
💼 Business & CRMFreeWidgetNew
Ecommerce Margin Estimator
Estimate per-unit contribution after manually entered costs and platform fees.
- Version
- v1.0.0
- Updated
- 2026-10-11
- Plan
- Free
Block height
px
- 1In Notion, type
/embedand press Enter. - 2Paste the URL below and click Embed link.
- 3Drag the block's edge to resize. It updates live from now on.
Embed URL
url
https://notionarena.vercel.app/embed/ecommerce-margin-estimatorOr paste it straight into the page
notepad
/embed → paste this URL → Embed link
https://notionarena.vercel.app/embed/ecommerce-margin-estimatorWorks on every Notion plan. No integration, no OAuth, no server. The trade-off: the widget lives on our host, so it needs network access to render, and a workspace serving thousands of page views a day could hit fair-use limits. For offline-safe delivery, use the HTML block tab.
About this component
Estimate unit contribution from sale price, unit cost, a manually entered platform-fee percentage, and fulfillment costs in USD. This is arithmetic only: it excludes tax, overhead, currency conversion, live marketplace data, and financial advice.
What it does
- Compare a capped list of product or SKU labels
- Estimate per-unit contribution after entered costs and fee percent
- Show contribution margin without annualizing or forecasting sales
- Store manual inputs locally; no marketplace or payment connection
Where people put it
↳A quick manual SKU comparison
↳A draft unit-economics worksheet before building a full model
↳A personal check of listed costs before adding products to a catalog