How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Average seed
Gremio 3 Santa Cruz 1 -0.1
Fortaleza 1 Ponte Preta 0 -0.1
Week of 11/26None
Week of 12/2None
Points
Chance Will Win Championship