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*Average seed
Coritiba 2 Figueirense 1 +13.8
+0.2
Bahia 3 Portuguesa 0 -4.8
-0.1
Week of 11/19100.0*Chance wins title100.0*Average seed
Bahia 1 Santo Andre 2 Yes
Icasa 2 Coritiba 2 -1.2
-0.0
Week of 11/26None
Points
Chance Will Win Championship