Talk:Frequently Asked Questions/@comment-32909102-20170820223331/@comment-30514476-20170821030059

The discrepancy is due to a couple factors: whether she has a Joker charge on the room or has hired a Joker friend or was using an energy talisman - these things would decrease the energy costs of a room.

As for the different fixers, they are random and progressively based on level.