On Thursday, 11 Sep 2014 at 10:50, Tory S. Anderson wrote:
> When I apply the formula 
>
>   #+TBLFM: $4=$3*$2::$hrs=vsum(@I..II)::$ttl=vsum(@I..II)
> It doesn't give me any errors, but it also doesn't do anything to
> $4. So if I change one of my hour amounts, the "hrs" field will update
> appropriately, but not the "cost" field, which remains unchanged. It
> appears that the initial formula is not doing anything.
>
> Org-mode version 8.2.7c (8.2.7c-61-g4b9146-elpa

You are correct.  I get the same behaviour.  Definitely a bug.

If you remove the last line (with labels) and replace the last row
formulae with direct references, it works.

 #+TBLFM: $4=$3*$2::@7$2=vsum(@I..@II)::@7$4=vsum(@I..@II)
 
-- 
: Eric S Fraga (0xFFFCF67D), Emacs 24.4.50.1, Org release_8.3beta-320-gb5c9de