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*Chance wins title100.0*Libertadores100.0*Average seed
Corinthians 2 Atletico-MG 1 No
Figueirense 0 Fluminense 4 No
-23.6
-1.0
Vasco da Gama 2 Avai 0 -0.4
-0.3
-0.1
Atletico-GO 0 Flamengo 0 +3.2
+0.1
Sao Paulo 3 America-MG 1 -1.8
-0.1
Botafogo 1 Internacional 2 -1.0
-0.0
Coritiba 1 Santos 0 +0.4
Week of 11/27100.0*Chance wins title100.0*Libertadores100.0*Average seed
Figueirense 0 Corinthians 1 -18.9
-1.0
Flamengo 1 Internacional 0 +3.2
-0.0
Palmeiras 1 Sao Paulo 0 +2.6
+0.2
Atletico-MG 4 Botafogo 0 +1.7
+0.2
Coritiba 1 Avai 0 -0.7
-0.2
Fluminense 1 Vasco da Gama 2 +0.3
Santos 1 Bahia 1 +0.0
Week of 12/4100.0*Chance wins title100.0*Libertadores100.0*Average seed
Avai 1 Figueirense 1 No
-0.2
Vasco da Gama 1 Flamengo 1 No
-0.1
Internacional 1 Gremio 0 -5.3
-0.3
Atletico-PR 1 Coritiba 0 +3.0
+0.3
Sao Paulo 4 Santos 1 -0.3
Botafogo 1 Fluminense 1 +0.2
Points
Chance Will Win Championship