How are these numbers calculated?

Big Games

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

Week of 3/22100.0*Chance in playoffs100.0*Average seed
Boavista 1 Volta Redonda 0 -3.7
-1.1
Volta Redonda 2 Nova Iguacu 1 +1.5
+1.3
Nova Iguacu 0 Portuguesa 0 +0.8
+0.1
Flamengo 2 Vasco da Gama 2 -0.6
-0.0
Bangu 0 Botafogo 2 -0.5
-0.1
Vasco da Gama 1 Madureira 0 -0.3
-0.0
Botafogo 2 Fluminense 3 +0.1
+0.0
Portuguesa 2 Madureira 0 +0.1
-0.0
Macae 1 Resende 2 -0.1
Flamengo 3 Bangu 0 +0.0
Resende 0 Boavista 1 -0.0
If winner is:HomeDrawAway
Week of 3/29100.0*Chance in playoffs100.0*Average seed
Volta Redonda vs Flamengo+12.7-1.2Out
+1.7+0.2-0.4
Macae vs Volta RedondaOut-1.6+1.3
-1.4-0.8+0.9
Vasco da Gama vs Boavista-1.1+0.3+1.6
+0.1-0.0-0.2
Botafogo vs Resende-0.8+0.3+0.9
Resende vs Nova Iguacu+0.7+0.5-0.9
+0.1+0.1-0.2
Portuguesa vs Botafogo+0.9+0.4-0.7
-0.0+0.1-0.0
Nova Iguacu vs Vasco da Gama+0.6+0.6-0.9
-0.1+0.1+0.1
Boavista vs Portuguesa-0.1+0.1+0.1
-0.1+0.1+0.1
Madureira vs Fluminense-0.1*+0.0+0.0
-0.4-0.1+0.1
Madureira vs Bangu-0.2+0.2+0.2

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

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112Count
182-0-025.8%26512213,706,182
161-1-00.91154932209,738,265
151-0-1Out3304916223,469,527
140-2-0Out2194432303,548,966
130-1-1Out11140416012,758,016
120-0-2Out1154830508,496,052
Total:1.7%272127191861061,717,008
Points
Chance Will Make Playoffs