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 -0.4
-0.7
Brandon 82.5 Sara 89.2 +0.1
Michael 88.3 Dan 109.9 +0.1
-0.1
Jake 119.2 Derek 108.6 +0.1
+0.0
Jonathan 113.2 Andrew 131.5 +0.1
If winner is:HomeAway
Week of 11/16100.0*Chance in playoffs100.0*Average seed
Dan vs DavidOut+0.0
-0.6+0.8
Derek vs Jonathan+0.1-0.1
Andrew vs Brandon+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
63-00.1%042447232001,108,244
52-1Out0021234361427,313,537
41-2Out017434914,054,443
30-3Out12888,377,232
Total:0.0%00124812264630,853,456
Games Above .500
Chance Will Make Playoffs