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
Humphreys County vs Ruleville Central-13.3+17.8
-0.6+0.8
Yazoo County vs Elzy-0.5+0.7
Velma Jackson vs East Side-0.4+0.6
If winner is:HomeAway
Week of 10/9100.0*Chance in playoffs100.0*Average seed
Ruleville Central vs Yazoo County+13.5-18.0
+0.6-0.8
Elzy vs Velma Jackson+0.4-0.5

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456Count
55-0In10030,955,684
44-1In70291167,754,539
33-299.8%93941110363,067,760
22-352.701141399385,364,412
11-41.012970200,229,404
00-5Out10041,201,453
Total:64.4%1516161717181,188,573,252
Games Above .500
Chance Will Make Playoffs