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*Libertadores100.0*Average seed
Ponte Preta 1 Gremio 1 -2.0
-0.2
Atletico-MG 4 Goias 1 +1.1
+0.1
Atletico-PR 6 Nautico 1 -1.0
-0.1
Criciuma 1 Vitoria 1 +0.4
Sao Paulo 1 Botafogo 1 +0.2
+0.0
Week of 11/30100.0*Libertadores100.0*Average seed
Gremio 1 Goias 0 Yes
+0.6
Coritiba 2 Botafogo 1 +6.6
+0.1
Santos 2 Atletico-PR 1 +0.8
+0.2
Fluminense 2 Atletico-MG 2 +0.4
Vitoria 4 Flamengo 2 -0.2
Week of 12/7100.0*Libertadores100.0*Average seed
Portuguesa 0 Gremio 0 +0.2
Atletico-PR 5 Vasco da Gama 1 -0.2
Points
Chance Will Win Championship