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
Flamengo 3 Corinthians 0 -4.8
-0.2
Sao Paulo 0 Botafogo 0 -4.0
-0.3
Sport Recife 1 Bahia 0 +3.1
+0.2
Atletico-PR 3 Vasco da Gama 1 +2.2
+0.1
Atletico-GO 1 Chapecoense 1 +1.5
+0.1
Atletico-MG 3 Coritiba 0 -1.4
-0.1
Vitoria 1 Cruzeiro 1 +0.0
Week of 11/25100.0*Libertadores100.0*Average seed
Palmeiras 2 Botafogo 0 -19.4
-0.9
Week of 12/3100.0*Libertadores100.0*Average seed
Atletico-MG 4 Gremio 3 -13.5
-0.4
Chapecoense 2 Coritiba 1 -12.6
-0.3
Sao Paulo 1 Bahia 1 +7.8
+0.2
Vasco da Gama 2 Ponte Preta 1 -3.1
-0.3
Botafogo 2 Cruzeiro 2 -1.8
-0.2
Vitoria 1 Flamengo 2 -0.1
Points
Chance Will Win Championship