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
Fluminense 2 Sao Caetano 1 -16.2
-0.5
Vitoria 1 Coritiba 0 +11.9
+0.2
Internacional 3 Flamengo 1 -6.0
-0.1
Juventude 1 Atletico-MG 0 +2.4
+0.1
Ponte Preta 1 Sao Paulo 2 -0.1
Goias 3 Santos 0 -0.1
Week of 12/6100.0*Libertadores100.0*Average seed
Juventude 2 Sao Caetano 1 -27.1
-0.6
Fortaleza 2 Coritiba 2 +8.0
+0.1
Vitoria 0 Atletico-MG 1 -1.7
-0.1
Goias 0 Figueirense 3 +0.3
Internacional 1 Sao Paulo 1 +0.0
Week of 12/13100.0*Libertadores100.0*Average seed
Sao Caetano 5 Internacional 0 Yes
+1.3
Coritiba 2 Criciuma 0 -17.5
-0.3
Atletico-MG 3 Goias 2 -17.5
-0.4
Points
Chance Will Win Championship