How are these numbers calculated?

Big Games

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

Week of 1/31100.0*Average seed
TABC 55 Frisch 53 +0.5
MTA 37 Kushner 35 -0.1
Ramaz 41 Kushner 42 -0.0
D. Hatorah 52 SAR 72 -0.0
Week of 2/5100.0*Average seed
TABC 31 Heschel 51 -0.2
MTA 66 Hillel 47 -0.0
If winner is:HomeAway
Week of 2/12100.0*Average seed
SAR vs TABC-0.7+1.3
MTA vs JEC-0.0+0.6

What If

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

100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011Count
101-0In1007,638,465
90-1In39713,556,871
Total:In3626221,195,336
Games Above .500
Chance Will Make Playoffs