How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Libertadores100.0*Average seed
Atletico-PR 3 Vasco da Gama 1 -23.6
-1.1
Flamengo 3 Corinthians 0 -6.6
-0.2
Sport Recife 1 Bahia 0 +5.6
+0.2
Atletico-MG 3 Coritiba 0 -2.3
-0.1
Atletico-GO 1 Chapecoense 1 +2.0
+0.1
Sao Paulo 0 Botafogo 0 +1.7
+0.1
Week of 11/25100.0*Libertadores100.0*Average seed
Palmeiras 2 Botafogo 0 +5.1
+0.3
Fluminense 1 Sport Recife 2 +0.1
+0.1
Week of 12/3100.0*Libertadores100.0*Average seed
Vasco da Gama 2 Ponte Preta 1 Yes
+0.9
Atletico-MG 4 Gremio 3 -15.8
-0.4
Chapecoense 2 Coritiba 1 -13.1
-0.3
Botafogo 2 Cruzeiro 2 -1.9
-0.0
Vitoria 1 Flamengo 2 -0.6
Points
Chance Will Win Championship