How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Chance wins title100.0*Libertadores100.0*Average seed
Santos 0 Sao Paulo 1 +1.0
Yes
+0.2
Cruzeiro 2 Goias 1 No
Internacional 2 Atletico-MG 1 -0.2
+0.0
Corinthians 1 Gremio 0 +0.1
-0.1
Week of 11/29100.0*Chance wins title100.0*Libertadores100.0*Average seed
Fluminense 5 Corinthians 2 +0.1
Sao Paulo 1 Figueirense 1 -0.0
Week of 12/6None
Points
Chance Will Win Championship