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
Eddie 63.96 Westport 57.96 -9.5
-1.2
Alex Wax 85.84 Helfman 83.58 -0.5
+0.1
Koop/Rubin 116.5 Hayons 43.86 +0.4
Bukantz 102.2 Dammer 110.2 -0.3
-0.0
Lew 151.04 Ray 106.16 +0.2
Kochen 104.28 Kunal 126 +0.1
-0.1
If winner is:HomeAway
Week of 11/11100.0*Chance in playoffs100.0*Average seed
Westport vs Hayons+11.2-15.8
+0.8-1.1
Eddie vs Kochen+2.6-0.9
+0.2-0.1
Bukantz vs Ray+1.9-1.4
+0.1-0.1
Lew vs Alex Wax+0.9-1.8
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 Westport finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
94-0In303234403,890,992
83-1100.0%12032331310010,166,964
72-287.3012153733111009,908,717
61-310.80001103036194004,260,278
50-40.00032248260686,833
Total:80.1%5121617171386321028,913,784
Games Above .500
Chance Will Make Playoffs