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 +12.3
-0.5
Internacional 0 Fluminense 2 +4.0
-0.1
Palmeiras 2 Ipatinga 0 -0.4
+0.1
Week of 11/30100.0*Relegated100.0*Average seed
Coritiba 0 Vasco da Gama 2 -23.4
+1.0
Nautico 2 Atletico-PR 1 +5.5
-0.1
Botafogo 1 Figueirense 3 +3.9
-0.3
Atletico-MG 0 Santos 0 +0.3
Portuguesa 2 Sport Recife 2 -0.2
Sao Paulo 1 Fluminense 1 +0.1
Ipatinga 1 Gremio 4 +0.1
Week of 12/7100.0*Relegated100.0*Average seed
Vasco da Gama 0 Vitoria 2 Yes
-0.8
Atletico-PR 5 Flamengo 3 +13.1
-0.2
Figueirense 3 Internacional 1 +12.5
-0.3
Santos 0 Nautico 0 +4.3
-0.1
Cruzeiro 4 Portuguesa 1 +0.1
Points
Chance Will Win Championship