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
East Central vs Moss Point+14.0-18.7
+0.6-0.8
St. Stanislaus vs Vancleave-0.5+0.7
If winner is:HomeAway
Week of 10/9100.0*Chance in playoffs100.0*Average seed
Pass Christian vs East Central-13.7+18.2
-0.6+0.8
St. Stanislaus vs Bay-0.5+0.7
Vancleave vs Moss Point+0.5-0.6

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456Count
55-0In100324,084,655
44-1In702911,755,903,256
33-299.8%939411103,800,524,464
22-352.7011413994,033,939,330
11-41.0129702,095,705,403
00-5Out100431,330,632
Total:64.4%15161617171812,441,487,740
Games Above .500
Chance Will Make Playoffs