How are these numbers calculated?

Big Games

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

Week of 11/15100.0*Chance wins title100.0*Average seed
Ceará 2 Vasco da Gama 0 +0.1
Week of 11/21100.0*Chance wins title100.0*Average seed
Ponte Preta 0 América-MG 1 +17.2
+0.2
Joinville 1 Luverdense 1 -6.2
-0.1
Week of 11/29100.0*Chance wins title100.0*Average seed
Oeste 1 Joinville 0 -23.1
-0.2
Náutico 1 Ponte Preta 1 Yes
+0.1
Points  (Full Screen)
Chance Will Win Championship  (Full Screen)