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
Atletico-PR 6 Nautico 1 +21.8
+0.8
Atletico-MG 4 Goias 1 +3.4
+0.1
Criciuma 1 Vitoria 1 +1.3
+0.0
Sao Paulo 1 Botafogo 1 +1.0
+0.0
Ponte Preta 1 Gremio 1 +0.5
+0.0
Week of 11/30100.0*Libertadores100.0*Average seed
Santos 2 Atletico-PR 1 -8.4
-0.6
Coritiba 2 Botafogo 1 +3.3
+0.1
Vitoria 4 Flamengo 2 -1.5
Gremio 1 Goias 0 +1.4
-0.1
Fluminense 2 Atletico-MG 2 +0.9
Week of 12/7100.0*Libertadores100.0*Average seed
Botafogo 3 Criciuma 0 -10.3
-0.2
Atletico-PR 5 Vasco da Gama 1 Yes
+0.6
Goias 0 Santos 3 +5.8
+0.2
Atletico-MG 2 Vitoria 2 +5.1
+0.1
Portuguesa 0 Gremio 0 -0.1
Points
Chance Will Win Championship