How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/29100.0*Libertadores100.0*Average seed
Juventude 1 Atletico-MG 0 -9.4
-0.7
Fluminense 2 Sao Caetano 1 +3.3
+0.1
Internacional 3 Flamengo 1 -3.1
-0.1
Vitoria 1 Coritiba 0 +1.0
Goias 3 Santos 0 -0.2
Fortaleza 5 Parana 3 +0.1
Week of 12/6100.0*Libertadores100.0*Average seed
Juventude 2 Sao Caetano 1 +4.5
+0.1
Fortaleza 2 Coritiba 2 +4.2
+0.1
Vitoria 0 Atletico-MG 1 +2.8
+0.4
Internacional 1 Sao Paulo 1 -1.7
-0.1
Goias 0 Figueirense 3 +0.2
Corinthians 1 Parana 1 +0.0
Week of 12/13100.0*Libertadores100.0*Average seed
Atletico-MG 3 Goias 2 +23.9
+0.8
Coritiba 2 Criciuma 0 No
-0.2
Sao Caetano 5 Internacional 0 No
-0.2
Points
Chance Will Win Championship