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 -3.6
-0.1
Paysandu 3 Sao Paulo 0 +3.3
+0.2
Week of 5/24100.0*Chance in playoffs100.0*Average seed
Bahia 0 Santos 2 +31.1
+2.0
Guarani 0 Atletico-MG 1 +5.2
+0.1
Flamengo 3 Goias 1 -4.1
-0.2
Internacional 0 Sport Recife 0 +3.1
+0.1
Fluminense 1 Cruzeiro 1 -2.3
-0.1
Palmeiras 1 Atletico-PR 0 -2.0
-0.1
Cruzeiro 1 Portuguesa 1 +0.4
+0.0
Week of 5/31100.0*Chance in playoffs100.0*Average seed
Vasco da Gama 0 Santos 0 +23.1
-0.1
Guarani 2 Botafogo 1 -16.4
-0.5
Sport Recife 0 Palmeiras 2 -11.2
-0.3
Flamengo 2 Internacional 0 +7.8
+0.1
Sao Paulo 2 Nautico 0 -7.4
-0.3
Atletico-PR 0 Corinthians 1 -6.8
-0.3
Games Above .500
Chance Will Make Playoffs