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+0.3+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
132-0In75252,425,496
121-1In12884,849,423
110-2In1002,426,800
Total:In25759,701,719
Games Above .500
Chance Will Make Playoffs