How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Average seed
BOOM 90 BUYS 79 -0.4
JLG 95 SBR 122 +0.2
HELS 78 LKB 100 +0.0
Week of 11/24100.0*Average seed
BUYS 77 HELS 70 +0.7
PPHS 77 JLG 96 -0.3
If winner is:HomeTieAway
Week of 12/1100.0*Average seed
BUYS vs SBR+0.6-0.5-0.6
GOLD vs JLG+0.4+0.3-0.4

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678910Count
101-0-0In73278,616,069
9.50-0-1In3169350,791
90-1-0In22788,620,640
Total:In36125317,587,500
Games Above .500
Chance Will Make Playoffs