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*Serie B100.0*Average seed
Paysandu 3 Sao Paulo 0 +3.6
-0.1
Week of 5/24100.0*Serie B100.0*Average seed
Flamengo 3 Goias 1 +7.3
-0.9
Bahia 0 Santos 2 -7.0
+0.3
Cruzeiro 1 Portuguesa 1 +1.1
-0.1
Nautico 1 Vasco da Gama 1 -0.6
+0.0
Guarani 0 Atletico-MG 1 -0.2
Palmeiras 1 Atletico-PR 0 +0.1
Week of 5/31100.0*Serie B100.0*Average seed
Atletico-MG 0 Paysandu 0 -6.9
+0.2
Sao Paulo 2 Nautico 0 -6.2
+0.1
Bragantino 0 Bahia 0 +6.1
-0.2
Goias 1 Portuguesa 1 +2.2
-0.8
Atletico-PR 0 Corinthians 1 +0.2
Games Above .500
Chance Will Make Playoffs