How are these numbers calculated?

Big Games

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

Week of 9/14100.0*Chance in playoffs100.0*Average seed
Jon A 99 David 158.85 +10.8
+0.9
If winner is:HomeAway
Week of 9/21100.0*Chance in playoffs100.0*Average seed
Jon N vs David-10.9+7.1
-0.9+0.6

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
1312-0In10024,619
1211-1In991190,675
1110-2In92800830,256
109-3In67293002,180,220
98-4100.0%25452550003,852,690
87-599.92163532132004,818,260
76-685.1004183330122004,374,363
65-718.8003153231153002,909,914
54-80.20031533331421,402,444
43-9Out005244526480,882
32-10Out032770110,527
21-11Out069415,190
10-12Out01005,368
Total:76.3%1715141210976432121,195,408
Games Above .500
Chance Will Make Playoffs