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*Serie A100.0*Serie C100.0*Average seed
Santa Cruz 0 Sampaio Correa 2 +2.5
+1.3
Sampaio Correa 3 Boa Esporte 0 +0.8
No
+1.1
Avai 2 Portuguesa 0 -0.6
-0.1
Boa Esporte 1 Joinville 0 -0.6
-0.1
ABC 1 Ceara 0 +0.6
+0.0
Atletico-GO 1 Bragantino 0 -0.4
-0.1
America-MG 3 Avai 0 +0.2
-0.1
Vasco da Gama 3 Vila Nova 1 -0.1
Ceara 2 Vasco da Gama 0 -0.1
-0.1
Bragantino 2 Santa Cruz 1 +0.1
+0.0
Oeste 2 Nautico 0 +0.2
Icasa 1 Parana 2 -0.1
Nautico 1 Luverdense 0 -0.0
Week of 11/21100.0*Serie A100.0*Serie C100.0*Average seed
America-RN 1 Nautico 0 +0.1
Week of 11/29100.0*Serie A100.0*Serie C100.0*Average seed
Atletico-GO 2 Santa Cruz 3 -0.3
America-MG 4 Sampaio Correa 0 -0.3
Points
Chance Will Win Championship