> For the complete documentation index, see [llms.txt](https://fatima-farms.gitbook.io/fatima-farms-usdfat/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://fatima-farms.gitbook.io/fatima-farms-usdfat/faq/equations.md).

# Equations

### Vaults APY Calculations - 

((1+(periodicRate/100))^numberOfPeriods)-1 \* 100 = APY 

periodicRate = daily apr / 24 

number of periods = 8760

### General Liquidation Calculation

% Price Change for liquidation  = 1-(debt ratio %/liq threshold %)^2