How are these numbers calculated?

Big Games

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

Week of 9/25100.0*Chance in playoffs100.0*Average seed
Ocean Springs 17 Hancock 13 -12.7
-0.7
If winner is:HomeAway
Week of 10/2100.0*Chance in playoffs100.0*Average seed
Hancock vs St. Martin+9.8-15.6
+0.6-0.9
Biloxi vs Harrison Central+0.5-0.4
D'Iberville vs Ocean Springs-0.3+0.5

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678Count
66-0In90100593,256
55-1100.0%304820204,285,134
44-283.71113438151012,837,605
33-312.70112383811119,676,146
22-40.00222502616,269,987
11-5Out019806,874,789
00-6Out1001,180,091
Total:29.4%369121618191861,717,008
Games Above .500
Chance Will Make Playoffs