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*Average seed
Red Bull 1 Novorizontino 0 +0.3
+0.0
Ituano 2 Guarani 1 +0.2
Week of 3/10100.0*Chance in playoffs100.0*Average seed
Santos 0 Novorizontino 1 -0.5
-0.2
Novorizontino 2 Sao Caetano 1 -0.2
Week of 3/16100.0*Chance in playoffs100.0*Average seed
Sao Paulo 0 Palmeiras 1 In
+0.2
Novorizontino 1 Ferroviaria 1 +0.1
Palmeiras 1 Ponte Preta 0 +0.1
Points
Chance Will Make Playoffs