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*Serie B100.0*Average seed
Paysandu 3 Sao Paulo 0 +1.2
Corinthians 1 Fluminense 0 -0.9
+0.0
Week of 5/24100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Palmeiras 1 Atletico-PR 0 Out
+0.1
-1.9
Flamengo 3 Goias 1 -1.5
No
+0.0
Guarani 0 Atletico-MG 1 +1.0
-0.2
Internacional 0 Sport Recife 0 +0.7
+0.1
Cruzeiro 1 Portuguesa 1 -0.3
+0.0
+0.0
Fluminense 1 Cruzeiro 1 +0.1
Bahia 0 Santos 2 +0.1
Nautico 1 Vasco da Gama 1 +0.1
Week of 5/31100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Atletico-PR 0 Corinthians 1 -1.2
Goias 1 Portuguesa 1 +0.3
Sport Recife 0 Palmeiras 2 +0.1
Atletico-MG 0 Paysandu 0 -0.1
Games Above .500
Chance Will Make Playoffs