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
Criciuma 2 Palmeiras 1 -30.7
+0.9
Fluminense 2 Atletico-PR 3 -4.6
+0.1
Vasco da Gama 1 Santos 2 +0.6
Corinthians 0 Bahia 0 +0.3
Bahia 4 Bragantino 2 -0.2
Santos 1 Vitoria 0 +0.1
Coritiba 0 Flamengo 0 +0.1
Week of 11/14100.0*Serie B100.0*Average seed
Vasco da Gama 4 Criciuma 2 +14.5
-0.4
Parana 2 Bahia 1 -5.9
+0.1
Flamengo 3 Fluminense 1 -5.4
+0.1
Bragantino 3 Sao Paulo 4 -5.3
+0.1
Week of 11/21100.0*Serie B100.0*Average seed
Vitoria 1 Fluminense 3 +26.0
-0.6
Flamengo 0 Bahia 1 +12.0
-0.5
Atletico-PR 1 Criciuma 2 No
+0.6
Points
Chance Will Make Playoffs