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
Figueirense 1 America-MG 2 +14.6
Yes
+0.3
Internacional 1 Vila Nova 1 +6.2
+0.1
+0.1
Goias 0 Ceara 0 +1.5
+0.1
Nautico 1 Londrina 2 -0.1
Week of 11/17100.0*Chance wins title100.0*Serie A100.0*Average seed
Goias 0 Internacional 2 -6.5
-0.1
Londrina 0 America-MG 0 -2.5
-0.0
Criciuma 1 Ceara 1 +1.0
Week of 11/24100.0*Chance wins title100.0*Serie A100.0*Average seed
America-MG 1 CRB 0 Yes
+0.2
Internacional 2 Guarani 0 -21.4
-0.2
Points
Chance Will Win Championship