How are these numbers calculated?

Big Games

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

Week of 10/24100.0*Serie B100.0*Average seed
America-MG 2 Atletico-PR 1 +4.9
-0.1
Santos 1 Parana 2 +4.3
-0.1
Goias 2 Juventude 2 -1.5
+0.1
Ponte Preta 2 Bragantino 2 +1.2
-0.4
Bragantino 1 Juventude 0 +1.0
+0.1
Gremio 2 America-RN 1 -0.3
America-RN 2 Santos 2 -0.1
Sao Paulo 1 Corinthians 2 -0.1
+0.1
Sport Recife 2 Botafogo 1 -0.1
+0.1
Flamengo 2 Guarani 1 +0.1
Vasco da Gama 0 Vitoria 1 -0.1
Week of 10/31100.0*Serie B100.0*Average seed
America-RN 0 Ponte Preta 1 -23.7
+1.4
Flamengo 2 America-MG 0 -3.9
+0.2
Palmeiras 3 Parana 2 -2.7
+0.1
Santos 3 Goias 1 -2.4
+0.1
Portuguesa 3 Bragantino 1 -2.2
+0.1
Guarani 1 Gremio 3 -0.3
+0.2
Internacional 0 Botafogo 0 +0.1
-0.1
Week of 11/7100.0*Serie B100.0*Average seed
Botafogo 2 Santos 1 -0.3
Sport Recife 2 Guarani 1 +0.3
Ponte Preta 0 Atletico-MG 0 +0.2
Sao Paulo 2 Atletico-PR 0 -0.2
Cruzeiro 5 Juventude 0 +0.2
America-MG 1 Palmeiras 1 +0.1
Points
Chance Will Make Playoffs