How are these numbers calculated?

Big Games

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

Week of 11/9100.0*Chance in playoffs100.0*Average seed
David 74.9 Josh 101.1 -0.9
-0.9
Mark 87.2 Ryan 78.7 +0.4
Brandon 82.5 Sara 89.2 +0.3
Michael 88.3 Dan 109.9 +0.2
Jonathan 113.2 Andrew 131.5 -0.2
+0.1
Jake 119.2 Derek 108.6 +0.1
+0.1
If winner is:HomeAway
Week of 11/16100.0*Chance in playoffs100.0*Average seed
Dan vs DavidOut+0.0
-0.7+0.7
Andrew vs Brandon+0.1-0.1
Derek vs Jonathan+0.1-0.1

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
63-00.1%0213343514201,928,129
52-1Out001416353595,781,531
41-2Out00333645,785,816
30-3Out6941,931,252
Total:0.0%00246815263915,426,728
Games Above .500
Chance Will Make Playoffs