How are these numbers calculated?

Big Games

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

Week of 2/21100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Ituano 2 Sao Paulo 1 -7.2
+1.0
-0.2
Mirassol 1 Ponte Preta 0 +4.8
+1.0
+0.2
Santos 2 Santo Andre 0 +4.1
-0.4
+0.1
Sao Paulo 0 Ferroviaria 0 -3.9
-0.9
-0.1
Bragantino 2 Novorizontino 1 +0.3
Ituano 1 Red Bull 0 +0.1
Botafogo 1 Linense 1 -0.1
Week of 3/3100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Palmeiras 0 Sao Caetano 1 -4.5
-0.2
Santo Andre 0 Botafogo 1 +4.0
-0.9
+0.1
Ponte Preta 0 Bragantino 1 +1.1
+0.1
Novorizontino 3 Ituano 2 +0.4
Week of 3/7100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Red Bull 0 Ponte Preta 0 In
+0.1
Palmeiras 2 Sao Paulo 0 -0.9
-0.1
Sao Caetano 0 Botafogo 0 +0.5
+0.1
Sao Paulo 3 Red Bull 1 +0.2
Bragantino 1 Sao Caetano 1 -0.2
Points
Chance Will Make Playoffs