Hi,

In the following clock table:

#+BEGIN: clocktable :maxlevel 3 :emphasize nil :scope file :block 2014-08 :formula % :narrow 100
#+CAPTION: Clock summary at [2014-08-11 lun. 10:17], for août 2014.
| <100>                                                                                                |            |      |   |       |
| Headline                                                                                             |       Time |      |   |     % |
|------------------------------------------------------------------------------------------------------+------------+------+---+-------|
| *Total time*                                                                                         | *1d 16:04* |      |   | 100.0 |
|------------------------------------------------------------------------------------------------------+------------+------+---+-------|
| STARTED Read mail                                                                                    |       8:23 |      |   |  52.2 |
| STARTED GSoC                                                                                         |       0:49 |      |   |   5.1 |
...
#+TBLFM: $5='(org-clock-time% @3$2 $2..$4);%.1f
#+END: clocktable

The total time is apparently parsed as 16:04 instead of 1d 16:04 which leads to the incorrect conclusion that 8:23 is 52.2% of the time.

Emacs  : GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.10.7)
 of 2014-03-07 on lamiak, modified by Debian
Package: Org-mode version 8.2.7c (8.2.7c-elpa @ /home/loic/.emacs.d/elpa/org-20140730/)

-- 
Loïc Dachary, Artisan Logiciel Libre