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
D. Hatorah 52 SAR 72 +0.2
Week of 2/5100.0*Average seed
Frisch 68 Heschel 53 -0.3
If winner is:HomeAway
Week of 2/12100.0*Average seed
SAR vs TABC+0.5-0.5

What If

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

100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011Count
111-0In1003,374,016
100-1In1003,369,500
Total:In50506,743,516
Games Above .500
Chance Will Make Playoffs