How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Relegated100.0*Average seed
Vasco da Gama 1 Sao Paulo 2 -3.5
+0.1
Internacional 0 Fluminense 2 +2.7
-0.3
Palmeiras 2 Ipatinga 0 -0.6
Sport Recife 3 Atletico-MG 0 -0.1
Week of 11/30100.0*Relegated100.0*Average seed
Nautico 2 Atletico-PR 1 +11.5
-1.0
Botafogo 1 Figueirense 3 +4.6
-0.1
Coritiba 0 Vasco da Gama 2 +4.6
-0.1
Portuguesa 2 Sport Recife 2 -2.5
Atletico-MG 0 Santos 0 +0.5
+0.1
Sao Paulo 1 Fluminense 1 +0.1
+0.1
Week of 12/7100.0*Relegated100.0*Average seed
Atletico-PR 5 Flamengo 3 No
+1.6
Figueirense 3 Internacional 1 +24.6
-0.4
Vasco da Gama 0 Vitoria 2 -13.8
+0.2
Santos 0 Nautico 0 +4.2
+0.2
Fluminense 1 Ipatinga 1 +0.1
Points
Chance Will Win Championship