How are these numbers calculated?

Big Games

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

Week of 10/21100.0*Chance in playoffs100.0*Average seed
WA 56 LHS 0 -17.8
-0.6
SHS 0 NCHS 8 -5.3
HCHS 35 DHHS 36 +5.2
+0.1
If winner is:HomeAway
Week of 10/28100.0*Chance in playoffs100.0*Average seed
NCHS vs HCHS-8.7+8.7
EHS vs SHS+6.3-6.3
+0.1-0.1
DHHS vs WA-1.4+1.4
-0.1+0.1

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567Count
31-070.6%130392723,112,941,283
20-17.2174732143,113,023,563
Total:38.9%11523371776,225,964,846
Games Above .500
Chance Will Make Playoffs