How are these numbers calculated?

Big Games

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

Week of 10/5100.0*Average seed
David 93.8 Jonathan 74.6 +0.7
Andrew 86.9 Derek 67.8 +0.1
If winner is:HomeAway
Week of 10/12100.0*Average seed
David vs Sara+0.7-0.7

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
108-0Out100022,569
97-1Out9550172,493
86-2Out7126300604,574
75-3Out2244276001,208,437
64-4Out192936194001,511,449
53-5Out0021232361621,208,913
42-6Out003224628603,567
31-7Out022573172,742
20-8Out049622,736
Total:Out161515141312965,527,480
Games Above .500
Chance Will Make Playoffs