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
SHS 0 NCHS 8 -30.9
-0.8
HCHS 35 DHHS 36 -1.7
-0.1
WA 56 LHS 0 +1.4
+0.1
If winner is:HomeAway
Week of 10/28100.0*Chance in playoffs100.0*Average seed
EHS vs SHS-0.6+33.0
-0.0+1.7
NCHS vs HCHS-4.1+5.6
-0.2+0.3
DHHS vs WA-7.0+0.1
-0.1+0.0

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567Count
42-0In982239,293,606
31-191.2%053389012,410,394,055
20-219.9515136448,158,485,115
Total:63.3%134291025120,808,172,776
Games Above .500
Chance Will Make Playoffs