How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Chance wins title100.0*Serie A100.0*Average seed
Botafogo 0 Santa Cruz 3 +0.3
-3.6
-0.2
Vitoria 1 Ceara 0 +0.1
+9.7
+0.4
Parana 1 America-MG 0 +0.1
Nautico 1 CRB 1 +2.4
+0.1
Bragantino 3 Sampaio Correa 0 +0.9
+0.0
Boa Esporte 3 Bahia 0 +0.8
Paysandu 3 Luverdense 2 -0.3
Week of 11/20100.0*Chance wins title100.0*Serie A100.0*Average seed
ABC 1 Botafogo 2 No
Parana 0 Bragantino 2 -3.0
Vitoria 3 Luverdense 0 Yes
+0.3
Nautico 1 Bahia 0 -0.5
America-MG 1 Ceara 1 +0.2
Mogi Mirim 0 Santa Cruz 3 -0.2
Week of 11/27100.0*Chance wins title100.0*Serie A100.0*Average seed
Santa Cruz 3 Vitoria 1 -0.5
Botafogo 0 America-MG 0 +0.2
Points
Chance Will Win Championship