How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Average seed
FirstTry 128.92 Winti Lambeaugh 110.82 +0.6
g-park saints 45.4 GITS_sauce 112.8 +0.1
DuvalNation 149.2 Yoichi 91 101.44 +0.1
If winner is:HomeAway
Week of 12/1100.0*Average seed
FirstTry vs basel saints+0.4-0.4
Winti Lambeaugh vs g-park saints+0.2-0.2
bromtady vs Yoichi 91+0.2-0.2
LA vs DuvalNation-0.1+0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
72-0Out104338105,141,953
61-1Out83457010,280,969
50-2Out12621875,149,418
Total:Out21530475220,572,340
Games Above .500
Chance Will Make Playoffs