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 -1.0
+0.1
Paysandu 3 Sao Paulo 0 +1.0
Week of 5/24100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Guarani 0 Atletico-MG 1 +5.0
No
+2.0
Bahia 0 Santos 2 Out
-0.1
Flamengo 3 Goias 1 -1.4
-0.3
+0.1
Cruzeiro 1 Portuguesa 1 -0.6
-0.2
+0.0
Palmeiras 1 Atletico-PR 0 -0.4
Internacional 0 Sport Recife 0 +0.0
Fluminense 1 Cruzeiro 1 +0.2
Week of 5/31100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Atletico-MG 0 Paysandu 0 -0.6
Guarani 2 Botafogo 1 -0.2
Atletico-PR 0 Corinthians 1 +0.2
Sao Paulo 2 Nautico 0 -0.1
Sport Recife 0 Palmeiras 2 +0.1
Games Above .500
Chance Will Make Playoffs