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
Botafogo 1 Internacional 2 +7.1
+0.1
Cruzeiro 3 Vasco da Gama 1 -1.3
Goias 1 Santos 4 -0.6
-0.1
Sao Paulo 1 Fluminense 4 +0.2
+0.1
Week of 11/28100.0*Libertadores100.0*Average seed
Ceara 1 Atletico-PR 1 -11.8
-0.4
Guarani 0 Gremio 3 -9.1
-0.2
Botafogo 3 Gremio Prudente 1 -4.5
-0.2
Internacional 1 Vitoria 1 +2.2
+0.2
Avai 3 Santos 2 +2.0
+0.2
Gremio Prudente 0 Internacional 3 -0.3
Atletico-GO 1 Sao Paulo 1 +0.0
Week of 12/5100.0*Libertadores100.0*Average seed
Atletico-PR 1 Avai 0 +1.4
Santos 0 Flamengo 0 +0.2
Points
Chance Will Win Championship