Building Health upgrades don't function properly when tower strength is high

The percent they add is lower than advertised.  That said, tower health is pretty damned retarded when the strength is set to high so this is probably a good thing.  I only noticed this because I forgot to check the settings in the game I just played and the host had the towers set to high.  We had buildings 2 and our towers had 9800 health.  25% over 8400 would actually be 10500 health.  9800 corresponds to an additional 25% of the normal health(5600) added to the base high health.  Probably overupgrades when towers are set to weak lol.