> For the complete documentation index, see [llms.txt](https://docs.collection.xyz/guides/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.collection.xyz/guides/technical-reference/fee-structure/calculation-and-collection-of-fees.md).

# Calculation and Collection of Fees

* Flat fee = percentage of final traded price 
* User-defined fee = user defined percentage of final traded price
* Carry fee = percentage of user-defined fee 
* Royalty = set by `royaltyNumerator` where 100% is 1e18.