How are these numbers calculated?

Big Games

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

Week of 11/20100.0*Libertadores100.0*Serie B100.0*Average seed
Fluminense 1 Internacional 0 -20.5
-0.9
Internacional 1 Flamengo 2 -11.2
-0.7
Ceara 2 Corinthians 1 -6.2
-0.2
Atletico-GO 1 Ceara 1 +1.6
+0.1
Sao Paulo 0 Athletico-PR 0 +1.5
+0.1
Fluminense 2 America-MG 0 -1.2
-0.0
Fortaleza 1 Palmeiras 0 -0.8
-0.1
Bahia 0 Cuiaba 0 +0.7
+0.0
Santos 2 Fortaleza 0 -0.7
-0.1
Atletico-GO 1 Juventude 1 +0.6
Corinthians 2 Santos 0 +0.3
Atletico-MG 2 Juventude 0 +0.2
+0.0
Week of 11/27100.0*Libertadores100.0*Serie B100.0*Average seed
Internacional 1 Santos 1 -10.5
-0.3
Flamengo 2 Ceara 1 +3.8
+0.1
America-MG 3 Chapecoense 0 -2.6
-0.1
Bragantino 1 America-MG 1 +1.5
+0.1
Gremio 3 Sao Paulo 0 +1.4
+0.2
Juventude 1 Bragantino 0 +1.1
Sao Paulo 2 Sport Recife 0 -0.6
-0.1
Cuiaba 1 Palmeiras 3 +0.6
+0.1
Atletico-MG 2 Fluminense 1 +0.5
+0.0
Corinthians 1 Athletico-PR 0 +0.2
+0.1
Fortaleza 1 Juventude 0 +0.1
+0.0
Chapecoense 0 Atletico-GO 1 -0.1
-0.1
Athletico-PR 1 Cuiaba 0 -0.1
-0.0
Atletico-GO 2 Bahia 1 -0.1
Bahia 2 Atletico-MG 3 No
Week of 12/5100.0*Libertadores100.0*Serie B100.0*Average seed
Internacional 1 Atletico-GO 2 -22.7
-1.6
Ceara 0 America-MG 0 +7.8
+0.1
America-MG 2 Sao Paulo 0 No
+0.1
Atletico-GO 2 Flamengo 0 No
-0.2
Bragantino 1 Internacional 0 No
-1.5
Santos 1 Cuiaba 1 +4.3
+0.2
Flamengo 0 Santos 1 -3.6
-0.3
Palmeiras 1 Ceara 0 +2.4
+0.1
Athletico-PR 0 Palmeiras 0 +1.3
+0.0
Bahia 2 Fluminense 0 +1.1
Atletico-MG 4 Bragantino 3 +0.5
+0.0
Sao Paulo 3 Juventude 1 -0.3
-0.1
Sport Recife 1 Athletico-PR 1 +0.3
Points
Chance Will Win Championship