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
Vasco da Gama 1 Madureira 0 +13.3
+0.9
Bangu 0 Botafogo 2 -7.3
-0.1
Volta Redonda 2 Nova Iguacu 1 +6.5
+0.1
Flamengo 2 Vasco da Gama 2 +5.3
+0.2
Botafogo 2 Fluminense 3 +3.8
+0.1
Nova Iguacu 0 Portuguesa 0 +3.5
+0.1
Portuguesa 2 Madureira 0 +2.7
+0.1
Boavista 1 Volta Redonda 0 +0.8
+0.1
Macae 1 Resende 2 -0.2
Resende 0 Boavista 1 +0.1
-0.0
Flamengo 3 Bangu 0 +0.0
If winner is:HomeDrawAway
Week of 3/29100.0*Chance in playoffs100.0*Average seed
Nova Iguacu vs Vasco da Gama-31.4-5.4+34.4
-0.8+0.0+0.8
Vasco da Gama vs Boavista+21.1-13.5-25.1
+0.6-0.1-0.9
Botafogo vs Resende-12.7+6.3+14.7
-0.2+0.1+0.2
Portuguesa vs Botafogo+14.9+7.1-11.4
+0.2+0.1-0.2
Resende vs Nova Iguacu+5.5+4.7-7.3
+0.1+0.1-0.2
Volta Redonda vs Flamengo-5.1+0.4+0.7
-0.3-0.0+0.1
Macae vs Volta Redonda+0.7+0.6-0.5
+0.1+0.1-0.1
Madureira vs Fluminense-0.8+0.1+0.1
-0.2-0.0+0.0
Boavista vs Portuguesa-0.4+0.3+0.3
-0.1+0.0+0.1
Madureira vs Bangu-0.1+0.1+0.1

What If

Chances based on how well the Vasco da Gama finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112Count
212-0-0In10011,411,545
191-1-077.1%772312,809,021
181-0-142.2424512017,791,095
170-2-017.4175625203,550,379
160-1-14.04275117209,688,838
150-0-2Out119433256,466,130
Total:48.3%48251574161,717,008
Points
Chance Will Make Playoffs