Actually, maintenance is counted twice. I thought I posted this elsewhere but I can't find it now. Just set your spending slider to zero and you'll see spending includes maintenance on the planet screen and net profit = income - spending - maintenance on the Civ Manager/Colonies screen. I hope this gets fixed in the next rev because it makes the early econ too hard to get rolling.
GalCiv2 Forums
Double counting maintenance: If you set your spending slider to 0%, you can see that spending on each planet becomes equal to its maintenance costs. So spending includes maintenance -- silly IMO but no big deal if that's the way you want to define it. Now here is the rub: Go to the colonies tab on the Civ Manager and you'll see the net economy numbers for each planet. Net profit = income - spending - maintenance! So you are charged twice for maintenance! Foul! No wonder the post-rush eco