How are these numbers calculated?

Big Games

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

Week of 3/2100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Ituano 2 Guarani 1 +12.6
+0.1
Red Bull 1 Novorizontino 0 -11.5
-0.1
Week of 3/10100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Novorizontino 2 Sao Caetano 1 +22.2
+0.3
Santos 0 Novorizontino 1 +19.9
+0.4
Sao Bento 1 Ponte Preta 2 No
Week of 3/16100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Ponte Preta 3 Guarani 0 In
+0.0
Sao Paulo 0 Palmeiras 1 -0.3
-0.2
Novorizontino 1 Ferroviaria 1 -0.1
Palmeiras 1 Ponte Preta 0 -0.1
Points
Chance Will Make Playoffs