How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Libertadores100.0*Average seed
Palmeiras 1 Cruzeiro 1 -1.8
-0.2
Coritiba 1 Santos 0 +0.5
+0.1
Corinthians 6 Sao Paulo 1 +0.2
Internacional 1 Gremio 0 -0.2
-0.2
Flamengo 1 Ponte Preta 1 +0.1
Sport Recife 0 Atletico-PR 0 +0.1
Week of 11/28100.0*Libertadores100.0*Average seed
Sao Paulo 3 Figueirense 2 No
Fluminense 1 Internacional 1 +0.8
+0.1
Cruzeiro 3 Joinville 0 +0.9
Sport Recife 2 Corinthians 0 -0.3
Palmeiras 0 Coritiba 2 +0.2
Avai 1 Ponte Preta 0 +0.2
Vasco da Gama 1 Santos 0 +0.2
Atletico-PR 3 Flamengo 0 +0.1
Week of 12/6100.0*Libertadores100.0*Average seed
Internacional 2 Cruzeiro 0 -0.9
Ponte Preta 0 Sport Recife 1 -0.3
Santos 5 Atletico-PR 1 -0.3
Points
Chance Will Win Championship