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
JLG 95 SBR 122 +0.6
HELS 78 LKB 100 +0.2
GOLD 75 PPHS 92 -0.1
BOOM 90 BUYS 79 +0.1
Week of 11/24100.0*Average seed
SBR 82 LKB 57 +0.5
BUYS 77 HELS 70 +0.3
PPHS 77 JLG 96 -0.0
If winner is:HomeTieAway
Week of 12/1100.0*Average seed
BUYS vs SBR-0.5+0.0+0.5

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678910Count
101-0-0In1008,620,640
9.50-0-1In5149350,791
90-1-0In1008,616,069
Total:In505017,587,500
Games Above .500
Chance Will Make Playoffs