How are these numbers calculated?

Big Games

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

Week of 11/4100.0*Chance in playoffs100.0*Average seed
Lew 151.04 Ray 106.16 +13.9
+1.1
Eddie 63.96 Westport 57.96 +1.2
+0.1
Alex Wax 85.84 Helfman 83.58 -0.7
+0.1
Bukantz 102.2 Dammer 110.2 -0.5
Koop/Rubin 116.5 Hayons 43.86 +0.5
If winner is:HomeAway
Week of 11/11100.0*Chance in playoffs100.0*Average seed
Lew vs Alex Wax+8.4-8.4
+0.9-0.9
Eddie vs Kochen+1.0-1.0
+0.1-0.1
Bukantz vs Ray+0.8-0.8
Westport vs Hayons-0.1+0.1
Helfman vs Kunal+0.1-0.1
-0.1+0.1
Koop/Rubin vs Dammer+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
104-0In973602,869
93-1In692110002,409,313
82-2100.0%123333174003,612,993
71-382.8053152930143002,408,712
60-43.10031431351520604,041
Total:89.6%28191610984321009,637,928
Games Above .500
Chance Will Make Playoffs