> For the complete documentation index, see [llms.txt](https://docs.tidal.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tidal.finance/getting-started/est.-apr-calculation.md).

# Est. APR Calculation

Estimated APR = weekly earning percentage x 52

Weekly earning percentage = “premium distributed at the end of the previous week” divided by “collateral amount at the end of the previous week.“