How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Average seed
Graham 99 Scott 84 +0.4
Rodney 125 Dave 99 +0.2
Kelsie 68 Kara 89 -0.1
Sandy 128 Poppa 106 -0.1
If winner is:HomeAway
Week of 11/30100.0*Average seed
Graham vs Spencer+0.2-0.2
Kara vs Luke-0.1+0.1
Jake vs Sandy+0.1-0.1
Dave vs Nonnie-0.1+0.1

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678910111213141516Count
11.52-0-0In1002,410,020
10.51-1-0In9464,819,722
9.50-2-0In37431722,408,194
Total:In8114419,637,936
Games Above .500
Chance Will Make Playoffs