How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/13100.0*Average seed
ABC 3 Mogi Mirim 1 -0.2
Boa Esporte 3 Bahia 0 -0.1
Week of 11/20100.0*Average seed
Mogi Mirim 0 Santa Cruz 3 -0.1
Week of 11/27None
Chance Will Win Championship