How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Chance in playoffs100.0*Average seed
Detroit 84 Pittsburgh 50 +0.1
Atlanta 75 Chicago 112 In
+0.1
Halifax 74 Milwaukee 85 In
Week of 11/28None

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-D-Lplayoffs123456789101112Count
11-13In1007,737,140*
10.50-1-2In881297,969
100-0-3In87131,065,675
Total:In9828,900,784

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs