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*Average seed
Luverdense 1 America-MG 2 +12.7
+1.3
America-MG 3 Avai 0 +5.1
+1.2
Atletico-GO 1 Bragantino 0 -2.6
-0.2
Avai 2 Portuguesa 0 -2.5
-0.2
ABC 1 Ceara 0 +2.4
+0.2
Boa Esporte 1 Joinville 0 -2.3
-0.2
Sampaio Correa 3 Boa Esporte 0 +0.9
Santa Cruz 0 Sampaio Correa 2 +0.9
+0.0
Bragantino 2 Santa Cruz 1 +0.8
+0.1
Vasco da Gama 3 Vila Nova 1 -0.4
Ceara 2 Vasco da Gama 0 -0.4
-0.2
Oeste 2 Nautico 0 +0.1
Nautico 1 Luverdense 0 -0.0
Week of 11/21None
Week of 11/29100.0*Serie A100.0*Average seed
America-MG 4 Sampaio Correa 0 +15.7
+1.2
Avai 1 Vasco da Gama 0 No
-0.3
Icasa 3 Boa Esporte 2 +6.8
+0.3
Atletico-GO 2 Santa Cruz 3 +6.8
+0.3
Luverdense 1 Ceara 0 +0.5
+0.2
Points
Chance Will Win Championship