How are these numbers calculated?

Big Games

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

Week of 4/25100.0*Chance in playoffs100.0*Average seed
Palmeiras 1 Mirassol 2 +2.9
+0.1
Palmeiras 0 Inter de Limeira 1 +2.0
+0.0
Bragantino 0 Ferroviaria 0 -0.7
-0.0
Ituano 0 Sao Paulo 3 +0.2
Sao Bento 1 Novorizontino 1 +0.1
+0.0
Week of 5/1100.0*Chance in playoffs100.0*Average seed
Bragantino 1 Santos 1 In
-0.0
Guarani 2 Novorizontino 1 +0.2
Novorizontino 2 Botafogo 2 +0.0
If winner is:HomeDrawAway
Week of 5/9100.0*Chance in playoffs100.0*Average seed
Corinthians vs Novorizontino+0.1+0.1-0.2
Botafogo vs Bragantino-0.2+0.1+0.1

What If

Chances based on how well the Bragantino finish out the regular season.   Explain

100100100100
If finish:Chance inChance will finish regular season at seedSerie
TPW-D-Lplayoffs1234A2Count
23-25In100No1,117,965,376*
220-0-1In6238No685,456,720
Total:In8614No1,803,422,096

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs