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*Serie B100.0*Average seed
Criciuma 3 Vasco da Gama 4 Out
+10.3
-1.7
Santos 3 Bahia 1 -0.8
+0.2
Palmeiras 5 Gremio 1 +0.1
Botafogo 0 Parana 0 +0.0
Coritiba 0 Atletico-PR 2 +2.6
Guarani 0 Juventude 0 -0.6
Vitoria 1 Cruzeiro 1 +0.1
+0.0
Fluminense 2 Criciuma 0 +17.9
-1.6
Portuguesa 1 Goias 2 +1.0
-0.2
Sport Recife 2 Bragantino 1 -0.8
-0.0
Sao Paulo 7 Uniao Sao Joao 1 +0.3
-0.2
Week of 11/1100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Corinthians 1 Flamengo 0 +7.6
-0.3
Uniao Sao Joao 0 Guarani 1 +6.7
-0.3
Portuguesa 2 Criciuma 2 +5.3
-0.6
Bragantino 1 Uniao Sao Joao 0 +5.2
-0.2
Corinthians 0 Sport Recife 1 -4.4
+0.2
Atletico-PR 2 Internacional 1 +3.8
-0.2
Vasco da Gama 3 Bahia 1 -3.8
+0.2
Gremio 1 Guarani 4 +3.1
-0.1
Juventude 1 Fluminense 1 -2.1
+0.1
Juventude 2 Bragantino 1 -0.7
+0.1
Flamengo 1 Coritiba 0 -0.2
+0.1
Cruzeiro 2 Botafogo 3 -0.2
+0.1
Palmeiras 3 Goias 3 +0.0
Week of 11/8100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Criciuma 1 Atletico-PR 1 +24.2
-0.5
Guarani 3 Vasco da Gama 2 +6.7
-0.3
Goias 0 Corinthians 2 +2.8
-0.2
Internacional 7 Bragantino 0 -2.0
+0.1
Bahia 0 Juventude 0 +1.5
+0.1
Coritiba 2 America-RN 0 +1.4
-0.1
Santos 2 Cruzeiro 2 +1.4
-0.1
Fluminense 0 Gremio 2 +0.1
Points
Chance Will Make Playoffs