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*Average seed
Fortaleza 1 Palmeiras 0 +6.4
+0.8
Santos 2 Fortaleza 0 -0.8
-0.5
Internacional 1 Flamengo 2 +0.8
+0.1
Atletico-GO 1 Ceara 1 +0.6
+0.0
Ceara 2 Corinthians 1 -0.2
+0.1
Atletico-MG 2 Juventude 0 +0.1
Bahia 0 Cuiaba 0 +0.1
Sao Paulo 0 Athletico-PR 0 +0.1
Fluminense 2 America-MG 0 -0.1
Corinthians 2 Santos 0 -0.1
Fluminense 1 Internacional 0 -0.1
Week of 11/27100.0*Libertadores100.0*Average seed
Internacional 1 Santos 1 +0.5
Flamengo 2 Ceara 1 +0.4
+0.0
Fortaleza 1 Juventude 0 Yes
+0.5
Cuiaba 1 Palmeiras 3 +0.3
Bragantino 1 America-MG 1 +0.2
+0.1
America-MG 3 Chapecoense 0 -0.2
Juventude 1 Bragantino 0 +0.1
+0.2
Atletico-MG 2 Fluminense 1 +0.1
+0.1
Sao Paulo 2 Sport Recife 0 -0.1
Gremio 3 Sao Paulo 0 +0.1
Corinthians 1 Athletico-PR 0 +0.1
-0.2
Week of 12/5100.0*Libertadores100.0*Average seed
Fortaleza 2 Bahia 1 +0.4
Cuiaba 1 Fortaleza 0 -0.3
Juventude 1 Corinthians 0 +0.2
Bragantino 1 Internacional 0 -0.2
Corinthians 1 Gremio 1 +0.1
Bahia 2 Fluminense 0 +0.1
Atletico-MG 4 Bragantino 3 +0.1
Points
Chance Will Win Championship