CFA formula sheet - Elan (free pdf)O
Any other CFA L1 hopefuls here's the best sheet I've found for filling in and drilling formulas over these few final days. More comprehensive than the Schweser quicksheet (which is also good though and worth the $29 imho).
***Note that there are quite a few formulas in the Elan sheets that are not totally necessary, so of course be sure to cross reference with the CFAI LOS before you decide to commit to learning a certain formula.***
But this is great for checking if you have any gaps you want to fill in and clarifying any fuzzy concepts.
Good luck on December 1 gents and ladies!