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-GO 1 Chapecoense 1 -11.3
-0.6
Flamengo 3 Corinthians 0 -4.8
-0.2
Sport Recife 1 Bahia 0 +3.5
+0.1
Atletico-PR 3 Vasco da Gama 1 +2.7
-0.0
Sao Paulo 0 Botafogo 0 +1.6
+0.1
Atletico-MG 3 Coritiba 0 -1.1
-0.1
Fluminense 2 Ponte Preta 0 -0.1
Week of 11/25100.0*Libertadores100.0*Average seed
Palmeiras 2 Botafogo 0 +2.1
+0.1
Fluminense 1 Sport Recife 2 +0.1
+0.2
Week of 12/3100.0*Libertadores100.0*Average seed
Chapecoense 2 Coritiba 1 +51.2
+1.7
Vasco da Gama 2 Ponte Preta 1 -3.7
-0.2
Botafogo 2 Cruzeiro 2 +3.0
+0.1
Sao Paulo 1 Bahia 1 +1.2
+0.4
Atletico-MG 4 Gremio 3 -0.4
-0.3
Vitoria 1 Flamengo 2 -0.6
Atletico-PR 3 Palmeiras 0 -0.2
Points
Chance Will Win Championship