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 playoffs
Sacred Heart 15 Lumberton 48 -0.9
Salem 49 Bogue Chitto 0 -0.1
If winner is:HomeAway
Week of 10/2100.0*Chance in playoffs
Sacred Heart vs Stringer-1.4+0.5
Bogue Chitto vs Mount Olive-0.8+1.1
Lumberton vs Salem+0.4-0.3

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567Count
65-0In10044,442,640
54-1In51463211,539,183
43-299.9%33251130372,619,742
32-372.90014582610292,491,556
21-47.5076328197,222,884
10-5Out4692610,713,459
Total:82.5%1621232214401,029,029,464
Games Above .500
Chance Will Make Playoffs