How are these numbers calculated?

Big Games

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

Week of 11/12100.0*Chance wins title100.0*Serie A100.0*Average seed
Coritiba 2 Figueirense 1 No
-0.3
-0.3
Bahia 3 Portuguesa 0 -0.8
Yes
-0.2
Sao Caetano 0 America-MG 0 +0.2
+0.0
Sport Recife 1 Santo Andre 1 +0.1
Week of 11/19100.0*Chance wins title100.0*Serie A100.0*Average seed
Bahia 1 Santo Andre 2 +0.2
Guaratingueta 2 Figueirense 2 -0.2
America-MG 2 Sport Recife 1 -0.1
Week of 11/26100.0*Chance wins title100.0*Serie A100.0*Average seed
Figueirense 4 Parana 2 +0.5
Ponte Preta 0 America-MG 0 +0.2
Bragantino 2 Bahia 0 +0.2
Points
Chance Will Win Championship