How are these numbers calculated?

Big Games

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

Week of 11/7100.0*Chance in playoffs100.0*Average seed
Sport Recife 0 Corinthians 0 -3.2
-0.4
Guarani 0 Portuguesa 1 -2.5
-0.1
Santos 1 Vitoria 0 +2.2
+0.1
Goias 4 Juventude 1 -2.1
-0.1
Internacional 2 Parana 1 -1.7
-0.1
Atletico-MG 5 Vasco da Gama 1 -1.1
-0.1
Corinthians 0 Bahia 0 +1.1
+0.0
Coritiba 0 Flamengo 0 +0.8
+0.0
Vasco da Gama 1 Santos 2 +0.8
+0.1
Gremio 3 Santos 0 -0.5
-0.1
Sao Paulo 2 Gremio 1 -0.3
Botafogo 0 Cruzeiro 0 +0.2
Fluminense 2 Atletico-PR 3 *-0.1
-0.1
Criciuma 2 Palmeiras 1 +0.1
Week of 11/14100.0*Chance in playoffs100.0*Average seed
Cruzeiro 3 Sport Recife 1 -20.9
-1.3
Corinthians 1 Goias 1 +4.8
+0.1
Bragantino 3 Sao Paulo 4 -1.7
-0.1
Vitoria 0 Guarani 1 -1.2
-0.1
Flamengo 3 Fluminense 1 -1.2
-0.1
Portuguesa 1 Internacional 2 -0.6
-0.0
Gremio 0 Coritiba 2 +0.1
Palmeiras 2 Atletico-MG 0 -0.0
Week of 11/21100.0*Chance in playoffs100.0*Average seed
Palmeiras 4 Sport Recife 1 -34.6
-0.9
Portuguesa 4 Botafogo 1 -12.9
-0.4
Gremio 1 Goias 3 -12.0
-0.2
Bragantino 1 Internacional 0 +10.7
+0.3
Parana 1 Sao Paulo 1 +7.9
+0.2
Sao Paulo 1 Cruzeiro 0 -4.9
-0.1
Atletico-MG 3 Atletico-PR 2 -0.1

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Make Playoffs