How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/7100.0*Serie B100.0*Average seed
Bahia 4 Bragantino 2 +23.2
-0.8
Criciuma 2 Palmeiras 1 +9.1
-0.2
Fluminense 2 Atletico-PR 3 -3.3
+0.1
Corinthians 0 Bahia 0 +1.2
-0.0
Vasco da Gama 1 Santos 2 +0.6
-0.1
Santos 1 Vitoria 0 +0.1
-0.1
Coritiba 0 Flamengo 0 +0.0
Week of 11/14100.0*Serie B100.0*Average seed
Bragantino 3 Sao Paulo 4 +15.7
-0.5
Parana 2 Bahia 1 -5.0
+0.1
Vasco da Gama 4 Criciuma 2 -4.2
+0.1
Flamengo 3 Fluminense 1 -3.8
+0.1
Week of 11/21100.0*Serie B100.0*Average seed
Bragantino 1 Internacional 0 +0.4
Vitoria 1 Fluminense 3 -0.1
Points
Chance Will Make Playoffs