How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 10/14100.0*Chance in playoffs100.0*Average seed
Chicago vs Dallas+9.2-9.2
+1.0-1.0
Detroit vs Colorado+0.6-0.6
+0.1-0.1
Columbus vs St. Louis+0.5-0.5
+0.1-0.1
Arizona vs Pittsburgh-0.5+0.5
-0.1+0.1
Buffalo vs Quebec City+0.5-0.5
+0.1-0.1
Vegas vs Montreal-0.5+0.5
Calgary vs Washington-0.5+0.5
San Jose vs Tampa Bay-0.5+0.5
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Washington vs Chicago-7.3+7.3
-0.8+0.8
Dallas vs New York R-0.9+0.3
-0.1+0.0
St. Louis vs Boston-0.6+0.6
-0.1+0.1
Colorado vs Columbus-0.5+0.5
-0.1+0.1
Philadelphia vs Los Angeles+0.5-0.5
+0.1-0.1
Tampa Bay vs Arizona+0.5-0.5
Montreal vs Vancouver+0.5-0.5

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678910111213141516Count
36-38In100259*
3417-2In1000870
3216-3In9915,172
3015-4In9460020,323
2814-5In80181000061,245
2613-6In49371003000139,841
2412-7100.0%1633263165100253,922
2211-898.82920824201141000365,663
2010-978.10031071621201362000425,056
189-1029.50010025121921179310399,132
168-1110.50900014101924201020304,221
147-129.6100014122631170187,049
126-139.71000193147290,591
105-149.490110582234,904
84-159.51002444510,351
63-169.61008822,174
42-179.610189335
21-1811.9128842
00-192.2298178
Total:58.9%88787777666665512,301,328

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs