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
Santos 3 Bahia 1 +7.8
+0.6
Flamengo 1 Vitoria 0 +0.7
-0.1
Palmeiras 5 Gremio 1 -0.7
-0.1
Atletico-MG 3 America-RN 2 +0.7
Vitoria 1 Cruzeiro 1 +0.6
+0.0
Guarani 0 Juventude 0 +0.6
+0.0
Internacional 4 Flamengo 0 +0.2
+0.1
Week of 11/1100.0*Chance in playoffs100.0*Average seed
Vitoria 2 Santos 0 -1.8
-0.6
Juventude 2 Bragantino 1 -1.5
-0.1
Santos 2 America-RN 0 In
+0.4
America-RN 1 Sao Paulo 3 +1.1
Juventude 1 Fluminense 1 +0.9
+0.1
Palmeiras 3 Goias 3 -0.1
+0.1
Flamengo 1 Coritiba 0 -0.1
Corinthians 1 Flamengo 0 +0.1
Week of 11/8100.0*Chance in playoffs100.0*Average seed
Sport Recife 1 Palmeiras 1 +0.4
Santos 2 Cruzeiro 2 -0.3
Flamengo 0 Uniao Sao Joao 0 -0.1
Points
Chance Will Make Playoffs