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
Corinthians 1 Fluminense 0 -1.1
+0.1
Paysandu 3 Sao Paulo 0 +0.5
Week of 5/24100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Guarani 0 Atletico-MG 1 +4.5
No
+2.2
Flamengo 3 Goias 1 -1.1
-0.0
+0.1
Bahia 0 Santos 2 Out
-0.2
Palmeiras 1 Atletico-PR 0 -0.3
Cruzeiro 1 Portuguesa 1 -0.3
-0.0
+0.0
Fluminense 1 Cruzeiro 1 +0.2
Internacional 0 Sport Recife 0 +0.0
Week of 5/31100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Atletico-MG 0 Paysandu 0 -0.8
Guarani 2 Botafogo 1 -0.4
Atletico-PR 0 Corinthians 1 +0.1
Sao Paulo 2 Nautico 0 -0.1
Sport Recife 0 Palmeiras 2 -0.0
Games Above .500
Chance Will Make Playoffs