How are these numbers calculated?

Big Games

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

Week of 10/25100.0*Chance in playoffs100.0*Average seed
Guarani 0 Juventude 0 -10.9
-0.4
Flamengo 1 Vitoria 0 +9.1
+0.1
Vitoria 1 Cruzeiro 1 +4.6
+0.1
Palmeiras 5 Gremio 1 -2.5
-0.1
Atletico-MG 3 America-RN 2 +2.5
+0.1
Santos 3 Bahia 1 -2.0
-0.1
Botafogo 0 Parana 0 +0.8
+0.1
Internacional 4 Flamengo 0 +0.3
+0.0
Coritiba 0 Atletico-PR 2 +0.1
Sao Paulo 7 Uniao Sao Joao 1 -0.1
Sport Recife 2 Bragantino 1 -0.1
Week of 11/1100.0*Chance in playoffs100.0*Average seed
Juventude 2 Bragantino 1 +23.6
+1.0
Vitoria 2 Santos 0 -13.9
-0.2
Juventude 1 Fluminense 1 -11.5
-0.3
America-RN 1 Sao Paulo 3 +2.0
+0.0
Cruzeiro 2 Botafogo 3 -1.5
-0.1
Corinthians 0 Sport Recife 1 -0.7
-0.1
Santos 2 America-RN 0 -0.4
+0.0
Palmeiras 3 Goias 3 -0.2
+0.0
Week of 11/8100.0*Chance in playoffs100.0*Average seed
Atletico-MG 3 Vitoria 2 +26.3
+0.3
Bahia 0 Juventude 0 -5.4
Botafogo 3 Portuguesa 3 +0.6
+0.1
Points
Chance Will Make Playoffs