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-MG 4 Goias 1 +5.6
+0.1
Atletico-PR 6 Nautico 1 -2.6
-0.1
Sao Paulo 1 Botafogo 1 -1.1
-0.0
Criciuma 1 Vitoria 1 +0.9
+0.0
Ponte Preta 1 Gremio 1 +0.1
+0.0
Week of 11/30100.0*Libertadores100.0*Average seed
Coritiba 2 Botafogo 1 -29.2
-0.7
Gremio 1 Goias 0 +4.5
+0.0
Fluminense 2 Atletico-MG 2 +1.9
+0.0
Santos 2 Atletico-PR 1 +1.9
+0.1
Vitoria 4 Flamengo 2 -1.0
-0.1
Week of 12/7100.0*Libertadores100.0*Average seed
Goias 0 Santos 3 +30.5
+0.5
Botafogo 3 Criciuma 0 +22.1
+0.6
Atletico-MG 2 Vitoria 2 +4.8
+0.2
Atletico-PR 5 Vasco da Gama 1 -4.6
-0.1
Points
Chance Will Win Championship