How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Libertadores100.0*Average seed
Botafogo 1 Corinthians 0 -7.3
-0.6
Goias 4 Bahia 3 +1.5
Sao Paulo 1 Vasco da Gama 0 +0.5
-0.1
Fortaleza 2 Santos 1 -0.4
Internacional 2 Fortaleza 2 +0.4
+0.1
Atletico-MG 0 Athletico-PR 1 +0.2
-0.1
Ceara 1 Sao Paulo 1 +0.1
Palmeiras 1 Gremio 2 -0.1
Week of 12/1100.0*Libertadores100.0*Average seed
Ceara 0 Corinthians 1 Yes
+0.4
Atletico-MG 2 Corinthians 1 -8.2
-0.4
Goias 1 Fortaleza 2 +3.0
+0.0
CSA 1 Bahia 2 -0.5
Vasco da Gama 1 Cruzeiro 0 -0.4
Sao Paulo 2 Internacional 1 +0.1
Gremio 3 Sao Paulo 0 +0.0
Week of 12/8100.0*Libertadores100.0*Average seed
Internacional 2 Atletico-MG 1 -0.3
Corinthians 1 Fluminense 2 -0.2
Points
Chance Will Win Championship