Show the % on volume sliders when changing the volume settings for profile.
Show the % on volume sliders when changing the volume settings for profile to make setting/changing the level easier.
Even better than % -- since not all the volumes have the same number of 'gradations' -- is a fraction. For example: 4/12 for music volume, but 6/7 for ringer.
This is even more functional, as it provides information about the available amount of 'steps' per volume setting.
It would also be nice to be able to enter the value in a text box.