About
About SellerTools Hub
SellerTools Hub is an independent educational project for ecommerce operators who need to connect marketplace reports with the economics of an individual order.
Why the site exists
Revenue dashboards are useful, but they often separate the numbers that determine whether growth is healthy. Product cost may live in a supplier sheet, fulfillment in a logistics invoice, refunds in the store report and acquisition cost in an advertising account. SellerTools Hub brings those inputs into one visible decision model.
What we publish
The public library focuses on five browser-based calculators plus a small set of guides and field notes. Each page addresses a specific operating question such as whether a product can absorb its channel costs, how much advertising an order can afford, or how returns and promotions change contribution.
Publishing boundaries
Worked examples are constructed educational scenarios unless a page explicitly states otherwise. They are designed so the arithmetic can be checked line by line. The site does not present invented client outcomes, guaranteed profits or private platform data, and it is not affiliated with TikTok, Amazon, Shopify or Google.
How to use the library
- Start with one product and replace every default with a current input.
- Run an expected case and a downside case.
- Read the linked method and verify time-sensitive fees with the platform source.
- After orders settle, compare the estimate with payouts, refunds and actual acquisition cost.
Calculator outputs are planning estimates, not financial, tax, legal or compliance advice.