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
Guarani 1 Sao Paulo 3 +27.9
+0.3
Botafogo 2 Guarani 0 +26.6
+0.3
Oeste 0 Corinthians 2 +21.0
+0.4
Corinthians 1 Palmeiras 0 +6.2
No
+0.4
Ituano 0 Ferroviaria 0 +0.2
+0.1
+0.1
Ponte Preta 2 Novorizontino 0 +0.8
Ferroviaria 2 Inter de Limeira 0 -0.1
Points
Chance Will Make Playoffs

Lottery

Why are you looking down here? We just made the playoffs!

Big Games

Week of 7/22100.0*Lottery seed
Corinthians 1 Palmeiras 0 -1.2
Oeste 0 Corinthians 2 -1.2
Guarani 1 Sao Paulo 3 -0.8
Botafogo 2 Guarani 0 -0.7
Mirassol 0 Ponte Preta 1 -0.2
Inter de Limeira 2 Oeste 1 +0.2
Ituano 0 Ferroviaria 0 -0.1
Santos 3 Novorizontino 2 -0.1
Ferroviaria 2 Inter de Limeira 0 -0.0
Bragantino 2 Botafogo 0 -0.0