How are these numbers calculated?

Big Games

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

Week of 10/19100.0*Chance in playoffs100.0*Average seed
Jeff 77.22 Zach 136.02 +4.8
+0.8
Stuart 101.82 Scott 57 -0.6
Laurino 127.7 Harrison 68.16 +0.3
Robert 142.1 Kleissler 119.46 -0.2
Owen 85.42 Tommy 87.34 -0.1
Harry 76.02 Patton 107.02 -0.1
If winner is:HomeAway
Week of 10/26100.0*Chance in playoffs100.0*Average seed
Zach vs Stuart+10.4-10.4
+0.9-0.9
Harrison vs Kleissler-1.3+1.3
Robert vs Scott-0.6+0.6
Laurino vs Patton+0.5-0.5
+0.1-0.1
Jeff vs Owen-0.5+0.5
Harry vs Tommy+0.2-0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
107-0100.0%553960087,551
96-198.91241361010598,312
85-268.80525392461001,790,701
74-36.400624362481002,983,272
63-40.000418342912202,988,171
52-5Out00317383381,791,840
41-6Out0073954597,364
30-7Out079287,125
Total:19.2%13691112121211108510,924,336
Games Above .500
Chance Will Make Playoffs