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
South vs Pats+10.7-10.7
+0.9-0.9
Back Door vs Virgin+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 South finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
1313-0In1006,650
1212-1In100031,976
1111-2In9730190,458
1010-3In811810699,337
99-4In4143142001,748,776
88-5100.0%524372581003,147,038
77-685.3016203127122004,195,372
66-714.7002122731206104,192,576
55-80.0001825372453,146,430
44-9Out0021443411,748,634
33-10Out011881698,583
22-11Out0397191,021
11-12Out010031,687
00-13Out1006,590
Total:50.0%88888888888820,035,128
Games Above .500
Chance Will Make Playoffs