How are these numbers calculated?

Big Games

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

Week of 9/29100.0*Chance in playoffs100.0*Average seed
Chad 138.68 Margaret 133.66 -5.0
-0.6
Kyle 110.44 Amanda 130.7 +0.9
+0.1
Maria 173.46 Matthew 111.2 -0.7
Jacque 124.16 Josh 125.3 -0.5
-0.0
Lindsey 106.22 J Z 102.2 +0.2
Jacob 148.66 Kevin 123.34 +0.1
-0.0
If winner is:HomeAway
Week of 10/6100.0*Chance in playoffs100.0*Average seed
Jacob vs Margaret-8.6+9.3
-0.7+0.7
Kevin vs J Z+1.4-0.9
Chad vs Amanda-0.1+0.8
-0.0+0.1
Kyle vs Jacque-0.2+0.5
Lindsey vs Matthew+0.2-0.4
Maria vs Josh+0.1-0.2

What If

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

100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213Count
108-0In5240801,484,163
97-1In7344215105,605,243
86-299.5%032041287008,810,815
75-380.800183141182007,521,369
64-422.40022047273003,808,718
53-50.5011245358001,172,433
42-6Out063045191212,607
31-7Out0116562720,815
20-8Out2986,265
Total:79.6%41015181716116210028,642,428
Games Above .500
Chance Will Make Playoffs