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
Bahia 3 Portuguesa 0 +7.0
Yes
+0.5
Coritiba 2 Figueirense 1 -3.9
+0.1
+0.1
Sao Caetano 0 America-MG 0 +0.3
+0.0
Sport Recife 1 Santo Andre 1 +0.2
Week of 11/19100.0*Chance wins title100.0*Serie A100.0*Average seed
Bahia 1 Santo Andre 2 No
-0.2
Icasa 2 Coritiba 2 +0.8
Guaratingueta 2 Figueirense 2 +0.1
Week of 11/26100.0*Chance wins title100.0*Serie A100.0*Average seed
Figueirense 4 Parana 2 -0.4
Bragantino 2 Bahia 0 -0.4
Ponte Preta 0 America-MG 0 +0.1
Points
Chance Will Win Championship