How are these numbers calculated?

Big Games

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

Week of 10/31100.0*Chance in playoffs100.0*Average seed
Travis 78 Trey 72 -10.4
-1.0
Robert 67 DJ 86 -1.0
Andrew 106 Cody 67 -0.8
-0.1
Brandon 81 James 71 +0.8
+0.0
Scotty 98 Justin 74 -0.4
Roman 104 Megan 91 +0.2
If winner is:HomeTieAway
Week of 11/7100.0*Chance in playoffs100.0*Average seed
Trey vs Roman+5.8-3.6-5.7
+0.9-0.2-0.9
DJ vs Andrew-0.8-0.7+0.8
+0.0-0.1-0.0
Justin vs Travis+0.8-0.8-0.8
-0.1-0.0+0.1
James vs Scotty-0.4-1.0+0.4
+0.1-0.1-0.0
Megan vs Robert-0.3+0.3+0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
85-0-092.4%0332534700270,049
7.54-0-155.49541396026,820
74-1-028.26220402571001,337,601
3-0-228.161214225601,079
6.53-1-11.6001164033910108,044
2-0-35.661128391718
63-2-00.4000418343012202,672,053
2-1-20.30031635321223,244
5.52-2-1Out01103540131162,578
1-1-3Out1138381345
52-3-0Out0021538361002,667,621
1-2-2Out011238371003,314
4.51-3-1Out011651311107,939
0-2-3Out13464224
41-4-0Out05355181,336,525
0-3-2Out33651101,034
3.50-4-1Out117681526,926
30-5-0Out075538269,822
Total:7.3%021479121417181328,994,736
Games Above .500
Chance Will Make Playoffs