How are these numbers calculated?

Big Games

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

Week of 3/7100.0*Average seed
Commiss 105 Merrit 100 -0.2
Milligan 130 Tony 90 -0.1
Strain 119.6 Mia 150 +0.1
If winner is:HomeAway
Week of 3/14100.0*Average seed
Milligan vs Merrit-0.2+0.2
Strain vs Adam-0.1+0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
42-0Out1350374,501,059
2-3Out10013,498,481*
Total:Out3138417,999,540

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs