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
Nova Iguacu 0 Portuguesa 0 -0.1
Flamengo 2 Vasco da Gama 2 Out
Resende 0 Boavista 1 +0.1
Bangu 0 Botafogo 2 +0.0
Boavista 1 Volta Redonda 0 -0.1
Portuguesa 2 Madureira 0 +1.0
Volta Redonda 2 Nova Iguacu 1 -0.1
Macae 1 Resende 2 -0.1
Flamengo 3 Bangu 0 +0.0
If winner is:HomeDrawAway
Week of 3/29100.0*Chance in playoffs100.0*Average seed
Boavista vs Portuguesa-0.9-0.3+1.4
Portuguesa vs Botafogo+1.3-0.2-0.6
Resende vs Nova Iguacu-0.2+0.0+0.2
Botafogo vs Resende+0.2-0.0-0.2
Bangu vs Macae-0.2+0.1+0.1
Vasco da Gama vs Boavista+0.1-0.0-0.2
Macae vs Volta Redonda+0.2+0.0-0.1
Madureira vs Fluminense-0.2-0.1+0.0
Volta Redonda vs Flamengo-0.1-0.1+0.0
Madureira vs Bangu-0.0+0.1-0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112Count
152-0-0Out1134371625,224,239
131-1-0Out0831421718,642,237
121-0-1Out18324613016,955,209
110-2-0Out415353,553,004
100-1-1Out32561213,857,205
90-0-2Out12533513,485,114
Total:Out13481527311161,717,008
Points
Chance Will Make Playoffs