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 +0.6
Andrew 86.9 Derek 67.8 +0.0
If winner is:HomeAway
Week of 10/12100.0*Average seed
David vs Sara+0.7-0.7
Jake vs Josh-0.1+0.1
Mark vs Dan+0.0-0.1

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
108-0Out100011,524
97-1Out9730124,321
86-2Out762310724,687
75-3Out295118202,244,910
64-4Out22444264004,037,649
53-5Out0113383711104,358,416
42-6Out00428442132,774,001
31-7Out01185030959,473
20-8Out01981141,483
Total:Out915181817127315,376,464
Games Above .500
Chance Will Make Playoffs