Thread:NoWayThisUsernameIsAlreadyOwnedBySomeone/@comment-24335865-20150722162144/@comment-26143371-20150728211156

I checked the values: Fallout Boy's 10h "Train for Future Conflict" gives 231, where it should give 90, so I'm at ca. 156% Bonus-XP. My shown bonus is 38.8%. I still wait for ten buildings to complete construction and haven't bought 4 yet, so that explains the missing percentages to a 150% increase.

As for your additional buildings, that might have been this bug. I haven't been able to reproduce it though.