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 -5.9
+0.2
Internacional 0 Fluminense 2 +3.1
-0.2
Palmeiras 2 Ipatinga 0 -1.4
+0.1
Week of 11/30100.0*Relegated100.0*Average seed
Nautico 2 Atletico-PR 1 -27.7
+1.2
Botafogo 1 Figueirense 3 +8.4
-0.2
Coritiba 0 Vasco da Gama 2 +8.3
-0.2
Portuguesa 2 Sport Recife 2 -2.4
+0.1
Atletico-MG 0 Santos 0 +1.0
-0.0
Sao Paulo 1 Fluminense 1 +0.2
-0.0
Ipatinga 1 Gremio 4 -0.1
Week of 12/7100.0*Relegated100.0*Average seed
Santos 0 Nautico 0 -14.9
-0.3
Figueirense 3 Internacional 1 +12.3
-0.2
Vasco da Gama 0 Vitoria 2 -6.9
+0.1
Atletico-PR 5 Flamengo 3 +6.4
-0.3
Fluminense 1 Ipatinga 1 +0.1
Points
Chance Will Win Championship