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
Criciuma 1 Vitoria 1 -3.3
-0.1
Atletico-MG 4 Goias 1 +1.4
-0.1
Atletico-PR 6 Nautico 1 -0.7
-0.0
Sao Paulo 1 Botafogo 1 -0.2
Ponte Preta 1 Gremio 1 -0.1
Flamengo 1 Corinthians 0 +0.0
Week of 11/30100.0*Libertadores100.0*Average seed
Vitoria 4 Flamengo 2 +2.2
+0.3
Coritiba 2 Botafogo 1 +1.7
+0.1
Santos 2 Atletico-PR 1 +0.3
Gremio 1 Goias 0 +0.3
Criciuma 1 Sao Paulo 0 +0.0
Week of 12/7100.0*Libertadores100.0*Average seed
Goias 0 Santos 3 +10.1
+0.3
Botafogo 3 Criciuma 0 -4.7
-0.1
Atletico-MG 2 Vitoria 2 -4.4
+0.5
Atletico-PR 5 Vasco da Gama 1 -0.9
-0.0
Points
Chance Will Win Championship