How are these numbers calculated?

Big Games

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

Week of 7/22100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Palmeiras 2 Agua Santa 1 -38.3
+42.4
-0.6
Mirassol 0 Ponte Preta 1 -14.7
+11.8
-0.3
Oeste 0 Corinthians 2 +14.6
-13.3
+0.3
Inter de Limeira 2 Oeste 1 +14.2
-1.7
+0.2
Ponte Preta 2 Novorizontino 0 -3.9
+5.1
-0.2
Agua Santa 0 Mirassol 0 -1.9
+3.4
Santos 1 Santo Andre 1 *+0.1
Santo Andre 1 Ituano 3 +5.3
Bragantino 2 Botafogo 0 -4.9
Botafogo 2 Guarani 0 +4.4
Ituano 0 Ferroviaria 0 +1.3
Corinthians 1 Palmeiras 0 +0.8
Ferroviaria 2 Inter de Limeira 0 +0.5

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Make Playoffs

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Week of 7/22100.0*Lottery seed
Palmeiras 2 Agua Santa 1 +2.9
Oeste 0 Corinthians 2 -1.1
Mirassol 0 Ponte Preta 1 +1.1
Inter de Limeira 2 Oeste 1 -0.6
Agua Santa 0 Mirassol 0 +0.4
Ponte Preta 2 Novorizontino 0 +0.3
Botafogo 2 Guarani 0 +0.2
Corinthians 1 Palmeiras 0 +0.1
Santo Andre 1 Ituano 3 +0.1
Bragantino 2 Botafogo 0 -0.1
Ituano 0 Ferroviaria 0 -0.1
Santos 1 Santo Andre 1 -0.0