How are these numbers calculated?

Big Games

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

Week of 7/8100.0*Average seed
Jacksonville 70 Dallas 75 +0.1
Georgia 41 Chicago 51 -0.1
If winner is:HomeHome OTAway OTAway
Week of 7/15100.0*Average seed
Dallas vs Chicago+0.2+0.2-0.2-0.2

What If

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

100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789Count
132-0In71292,180,951
121-1In11894,839,555
110-2In1002,662,841
Total:In22789,683,347
Games Above .500
Chance Will Make Playoffs