How are these numbers calculated?

Big Games

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

Week of 11/14100.0*Chance wins title100.0*Average seed
Joinville 3 Ponte Preta 1 -32.6
-0.3
Boa Esporte 1 Joinville 0 +13.8
+0.1
Ponte Preta 2 America-RN 2 -5.2
-0.1
Week of 11/21None
Week of 11/29100.0*Chance wins title100.0*Average seed
Oeste 1 Joinville 0 +23.1
+0.2
Nautico 1 Ponte Preta 1 No
-0.1
Points
Chance Will Win Championship