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
Mirassol 0 Ponte Preta 1 +23.6
+0.2
Ferroviaria 2 Inter de Limeira 0 Out
-0.1
Inter de Limeira 2 Oeste 1 +7.7
No
+0.3
Agua Santa 0 Mirassol 0 +0.8
-1.1
Botafogo 2 Guarani 0 +3.7
Ponte Preta 2 Novorizontino 0 +2.5
Corinthians 1 Palmeiras 0 +1.2
Ituano 0 Ferroviaria 0 -0.2
+0.1
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
Ferroviaria 2 Inter de Limeira 0 +1.8
Inter de Limeira 2 Oeste 1 -1.4
Mirassol 0 Ponte Preta 1 -0.7
Oeste 0 Corinthians 2 +0.3
Corinthians 1 Palmeiras 0 +0.2
Botafogo 2 Guarani 0 +0.1
Bragantino 2 Botafogo 0 -0.1
Santos 3 Novorizontino 2 -0.1
Agua Santa 0 Mirassol 0 -0.1
Ponte Preta 2 Novorizontino 0 +0.1
Ituano 0 Ferroviaria 0 -0.1
Guarani 1 Sao Paulo 3 -0.1