How are these numbers calculated?

Big Games

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

Week of 11/21None
Week of 11/28100.0*Average seed
Botafogo 3 Gremio Prudente 1 -0.1
Atletico-MG 3 Goias 1 +0.0
Week of 12/5None
Points
Chance Will Win Championship