How are these numbers calculated?

Big Games

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

Week of 11/11100.0*Chance wins title100.0*Serie A100.0*Average seed
Internacional 1 Vila Nova 1 No
-2.9
-0.1
Figueirense 1 America-MG 2 No
-0.1
Goias 0 Ceara 0 +0.3
Nautico 1 Londrina 2 -0.2
-0.1
Week of 11/17100.0*Chance wins title100.0*Serie A100.0*Average seed
Nautico 1 Vila Nova 2 +1.4
+0.3
CRB 0 Parana 1 No
Londrina 0 America-MG 0 +0.5
+0.0
ABC 2 Oeste 0 +0.4
+0.2
Juventude 0 Figueirense 0 +0.0
Week of 11/24100.0*Chance wins title100.0*Serie A100.0*Average seed
Vila Nova 0 Londrina 1 -0.7
Oeste 1 Goias 1 -0.1
Points
Chance Will Win Championship