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
-1.0
Madureira 0 Boavista 0 +0.9
+0.1
Week of 4/15100.0*Chance in playoffs100.0*Average seed
Nova Iguacu 4 Resende 2 +1.3
Flamengo 1 Vasco da Gama 3 -0.2
Fluminense 1 Botafogo 0 +0.2
Madureira 4 Macae 2 -0.1
Boavista 2 Vasco da Gama 2 +0.1
If winner is:HomeDrawAway
Week of 4/25100.0*Chance in playoffs100.0*Average seed
Bangu vs Nova Iguacu-1.0-0.7+1.4
Portuguesa vs Boavista+0.2+0.2-0.4
Botafogo vs Macae-0.3-0.1+0.3
Resende vs Vasco da Gama-0.2+0.3+0.0
Fluminense vs Madureira+0.2-0.1-0.1

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
151-0-0Out245324No451,761,543
130-1-0Out2444275No285,030,184
120-0-1Out13403710No451,801,609
Total:Out9202026205No1,188,593,336
Points
Chance Will Make Playoffs