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
Coritiba 1 Santos 0 -18.8
-0.6
Corinthians 6 Sao Paulo 1 +6.9
+0.1
Internacional 1 Gremio 0 -4.8
-0.2
Palmeiras 1 Cruzeiro 1 +0.5
+0.1
Sport Recife 0 Atletico-PR 0 +0.2
+0.0
Flamengo 1 Ponte Preta 1 +0.1
Week of 11/28100.0*Libertadores100.0*Average seed
Vasco da Gama 1 Santos 0 No
-0.7
Sao Paulo 3 Figueirense 2 -8.1
-0.2
Fluminense 1 Internacional 1 +5.6
+0.2
Sport Recife 2 Corinthians 0 -0.2
Cruzeiro 3 Joinville 0 -0.1
Avai 1 Ponte Preta 0 +0.0
Week of 12/6100.0*Libertadores100.0*Average seed
Santos 5 Atletico-PR 1 +0.9
Ponte Preta 0 Sport Recife 1 -0.3
Internacional 2 Cruzeiro 0 +0.0
Points
Chance Will Win Championship