If you have mods like Numeric UI (Currently not working on beta) or Bestiary, you will be able to see the game’s actual damage and HP values. There is actually an unsanctioned mod that displays damage in a RPG fashion.
But what about changing the value multiplier in the Keep’s dummies? That would help players compare their damage to the HP of the foes seen in Bestiary.
Feel free to move this topic to the general area if you want, but I think this big patch is a perfect moment to add this little feature.