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 10/2100.0*Chance in playoffs100.0*Average seed
Palmer vs North Panola+15.3-15.3
+0.7-0.7
If winner is:HomeAway
Week of 10/9100.0*Chance in playoffs100.0*Average seed
Holly Springs vs Palmer-15.3+15.3
-0.7+0.7

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456Count
55-0In10011,554,145
44-1In7029157,035,950
33-299.8%83842110114,083,304
22-353.101142398114,052,762
11-41.01297057,035,336
00-5Out10011,555,999
Total:66.7%171717171717365,317,496
Games Above .500
Chance Will Make Playoffs