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 +20.6
-1.0
Internacional 0 Fluminense 2 +3.4
-0.1
Palmeiras 2 Ipatinga 0 -1.1
+0.1
Week of 11/30100.0*Relegated100.0*Average seed
Coritiba 0 Vasco da Gama 2 -21.0
+0.9
Nautico 2 Atletico-PR 1 +5.4
-0.1
Botafogo 1 Figueirense 3 +4.4
-0.3
Portuguesa 2 Sport Recife 2 -0.6
+0.0
Atletico-MG 0 Santos 0 +0.5
Sao Paulo 1 Fluminense 1 +0.3
Ipatinga 1 Gremio 4 -0.1
+0.1
Week of 12/7100.0*Relegated100.0*Average seed
Vasco da Gama 0 Vitoria 2 Yes
-0.9
Atletico-PR 5 Flamengo 3 +12.4
-0.2
Figueirense 3 Internacional 1 +12.4
-0.3
Santos 0 Nautico 0 +6.0
-0.1
Cruzeiro 4 Portuguesa 1 +0.1
Points
Chance Will Win Championship