How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Libertadores100.0*Average seed
Coritiba 1 Santos 0 +13.9
+0.2
Corinthians 6 Sao Paulo 1 -10.4
-0.2
Internacional 1 Gremio 0 -4.7
-0.1
Palmeiras 1 Cruzeiro 1 +1.3
+0.1
Sport Recife 0 Atletico-PR 0 +0.7
+0.0
Flamengo 1 Ponte Preta 1 +0.1
Week of 11/28100.0*Libertadores100.0*Average seed
Sao Paulo 3 Figueirense 2 +23.6
+0.5
Vasco da Gama 1 Santos 0 +7.7
+0.1
Fluminense 1 Internacional 1 +4.5
+0.1
Week of 12/6100.0*Libertadores100.0*Average seed
Internacional 2 Cruzeiro 0 -18.8
-0.2
Goias 0 Sao Paulo 1 Yes
+0.1
Points
Chance Will Win Championship