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*Chance wins title100.0*Libetadores100.0*Average seed
Botafogo 3 Sao Paulo 2 +1.3
Atletico-MG 0 Internacional 1 -0.9
-23.5
-0.9
Flamengo 0 Goias 0 +0.3
-0.1
+0.0
Atletico-PR 1 Cruzeiro 1 +2.8
+0.1
Santo Andre 4 Avai 2 +1.3
+0.1
Week of 11/29100.0*Chance wins title100.0*Libetadores100.0*Average seed
Goias 4 Sao Paulo 2 +0.1
-0.1
Corinthians 0 Flamengo 2 No
-0.1
Palmeiras 3 Atletico-MG 1 No
-22.0
-0.7
Sport Recife 1 Internacional 2 -1.1
-0.1
Cruzeiro 4 Coritiba 1 -3.6
-0.2
Gremio 4 Barueri 2 -0.1
Avai 2 Santos 2 +0.0
Week of 12/5100.0*Chance wins title100.0*Libetadores100.0*Average seed
Atletico-MG 0 Corinthians 3 -0.8
Vitoria 2 Goias 2 +0.4
Flamengo 2 Gremio 1 +0.3
Nautico 0 Avai 1 -0.2
Points
Chance Will Win Championship