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
Dan 143.28 David 161.7 +0.2
Kevin 109.4 Andy 138.52 -0.1
If winner is:HomeAway
Week of 11/24100.0*Average seed
Kevin vs David-0.5+0.1
Andy vs Matt-0.1+0.1
Ed vs Lori-0.0+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
102-0In89214,945,510
91-1In04749419,130,751
80-2In42584,214,179
Total:In36029838,290,440
Games Above .500
Chance Will Make Playoffs