How are these numbers calculated?

Big Games

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

Week of 5/23100.0*Chance in playoffs100.0*Average seed
Corinthians 1 Fluminense 0 -2.9
-0.2
Paysandu 3 Sao Paulo 0 +0.8
+0.2
Week of 5/24100.0*Chance in playoffs100.0*Average seed
Guarani 0 Atletico-MG 1 -34.7
-1.8
Flamengo 3 Goias 1 -3.1
-0.2
Internacional 0 Sport Recife 0 +0.9
+0.1
Palmeiras 1 Atletico-PR 0 -0.7
-0.0
Fluminense 1 Cruzeiro 1 +0.5
+0.1
Bahia 0 Santos 2 -0.4
-0.3
Cruzeiro 1 Portuguesa 1 +0.2
+0.1
Botafogo 0 Bragantino 2 -0.1
Week of 5/31100.0*Chance in playoffs100.0*Average seed
Guarani 2 Botafogo 1 In
+3.9
Atletico-MG 0 Paysandu 0 +0.4
Sport Recife 0 Palmeiras 2 -0.2
Atletico-PR 0 Corinthians 1 -0.2
Sao Paulo 2 Nautico 0 -0.1
Vasco da Gama 0 Santos 0 +0.1
Flamengo 2 Internacional 0 -0.1
Games Above .500
Chance Will Make Playoffs