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-9.9+9.9
-1.0+1.0
Detroit vs Colorado+0.6-0.6
+0.1-0.1
Buffalo vs Quebec City+0.6-0.6
+0.1-0.1
Vegas vs Montreal-0.6+0.6
-0.1+0.1
Columbus vs St. Louis+0.6-0.6
+0.1-0.1
Arizona vs Pittsburgh-0.5+0.5
-0.1+0.1
San Jose vs Tampa Bay-0.5+0.5
Calgary vs Washington-0.5+0.5
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Dallas vs New York R+12.0-3.5
+1.2-0.4
St. Louis vs Boston-0.6+0.6
-0.1+0.1
Montreal vs Vancouver+0.6-0.6
+0.1-0.1
Washington vs Chicago+0.5-0.5
+0.1-0.1
Colorado vs Columbus-0.5+0.5
-0.1+0.1
Tampa Bay vs Arizona+0.5-0.5
+0.1-0.1
Philadelphia vs Los Angeles+0.5-0.5

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678910111213141516Count
34-38In100451*
3216-3In9821,861
3015-4In955009,050
2814-5In8018100032,205
2613-6In5036100400087,822
2412-7100.0%16322621751000183,720
2211-898.72820625211241000305,394
2010-977.7003681722211362000406,472
189-1027.3006026132022179310432,323
168-117.00600014112025211020370,268
147-126.060014132732170253,056
126-135.960011033482136,629
105-145.860112592258,138
84-155.8602454718,686
63-165.860010854,325
42-175.86292670
21-183.849679
00-191.7298179
Total:48.0%55656777777788712,301,328

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs