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
Parana 1 America-MG 0 -7.4
-0.5
-0.3
Botafogo 0 Santa Cruz 3 +6.8
-0.3
-0.0
Vitoria 1 Ceara 0 -0.2
-0.1
Bragantino 3 Sampaio Correa 0 +0.1
Nautico 1 CRB 1 +0.1
Boa Esporte 3 Bahia 0 +0.1
Week of 11/20100.0*Chance wins title100.0*Serie A100.0*Average seed
ABC 1 Botafogo 2 No
-0.1
Parana 0 Bragantino 2 -1.4
America-MG 1 Ceara 1 Yes
-0.1
Mogi Mirim 0 Santa Cruz 3 -0.7
-0.2
Vitoria 3 Luverdense 0 -0.2
-0.2
Week of 11/27100.0*Chance wins title100.0*Serie A100.0*Average seed
Botafogo 0 America-MG 0 -0.3
Santa Cruz 3 Vitoria 1 -0.2
Points
Chance Will Win Championship