How are these numbers calculated?

Big Games

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

Week of 4/11100.0*Chance in playoffs100.0*Average seed
Fluminense 3 Nova Iguacu 1 Out
-0.8
Madureira 0 Boavista 0 +0.9
+0.1
Week of 4/15100.0*Chance in playoffs100.0*Average seed
Nova Iguacu 4 Resende 2 +1.1
Flamengo 1 Vasco da Gama 3 -0.3
Fluminense 1 Botafogo 0 +0.2
Boavista 2 Vasco da Gama 2 +0.1
Madureira 4 Macae 2 -0.1
Bangu 1 Volta Redonda 1 -0.0
If winner is:HomeDrawAway
Week of 4/25100.0*Chance in playoffs100.0*Average seed
Bangu vs Nova Iguacu-1.4-1.2+0.8
Fluminense vs Madureira+0.3-0.3-0.3
Resende vs Vasco da Gama+0.0+0.4-0.2
Portuguesa vs Boavista+0.1+0.1-0.3
Botafogo vs Macae-0.1+0.1+0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112RelegationCount
151-0-0Out235027No2,215,516,413
130-1-0Out2353222No879,762,665
120-0-1Out759314No573,412,922
Total:Out14302322101No3,668,692,000
Points
Chance Will Make Playoffs