How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 9/14100.0*Chance in playoffs100.0*Average seed
Back Door vs Virgin+10.7-10.7
+0.9-0.9
South vs Pats+0.1-0.1
If winner is:HomeAway
Week of 9/21100.0*Chance in playoffs100.0*Average seed
South vs Back Door-10.7+10.7
-0.9+0.9
Pats vs Virgin-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
1313-0In1006,569
1212-1In100031,515
1111-2In9730190,622
1010-3In8118100699,604
99-4In4143142001,747,541
88-5100.0%524372581003,142,873
77-685.3016203127122004,193,491
66-714.70002122731206104,195,867
55-80.0001825372453,144,854
44-9Out0021443411,751,344
33-10Out011881700,793
22-11Out0397191,383
11-12Out010031,967
00-13Out1006,705
Total:50.0%88888888888820,035,128
Games Above .500
Chance Will Make Playoffs