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 -1.0
+0.1
Paysandu 3 Sao Paulo 0 +0.9
Week of 5/24100.0*Chance in playoffs100.0*Average seed
Internacional 0 Sport Recife 0 -9.9
-0.3
Guarani 0 Atletico-MG 1 +1.4
-0.2
Flamengo 3 Goias 1 -0.8
-0.0
Cruzeiro 1 Portuguesa 1 +0.3
Palmeiras 1 Atletico-PR 0 +0.1
Bahia 0 Santos 2 -0.1
Fluminense 1 Cruzeiro 1 -0.1
Week of 5/31100.0*Chance in playoffs100.0*Average seed
Sport Recife 0 Palmeiras 2 -1.6
Atletico-PR 0 Corinthians 1 +0.2
Guarani 2 Botafogo 1 -0.2
Atletico-MG 0 Paysandu 0 +0.1
Games Above .500
Chance Will Make Playoffs