How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance wins title100.0*Average seed
Palmeiras 4 America-MG 0 +4.4
+0.1
Parana 1 Palmeiras 1 -4.0
-0.0
Flamengo 2 Gremio 0 -4.0
Botafogo 1 Internacional 0 +3.9
Internacional 1 Atletico-MG 2 +1.5
Sport Recife 0 Flamengo 1 -0.6
Week of 11/25100.0*Chance wins title100.0*Average seed
Cruzeiro 0 Flamengo 2 -3.1
Vasco da Gama 0 Palmeiras 1 Yes
+0.0
Week of 12/1None
Points
Chance Will Win Championship