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
Vegas vs Montreal+7.4-7.4
+0.8-0.8
Calgary vs Washington-0.6+0.6
-0.1+0.1
Columbus vs St. Louis+0.5-0.5
+0.1-0.1
Buffalo vs Quebec City+0.5-0.5
Arizona vs Pittsburgh-0.5+0.5
-0.1+0.1
San Jose vs Tampa Bay-0.4+0.4
-0.1+0.1
Detroit vs Colorado+0.4-0.4
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Quebec City vs Vegas-9.2+9.2
-1.0+1.0
Colorado vs Columbus-0.6+0.6
-0.1+0.1
Washington vs Chicago+0.6-0.6
+0.1-0.1
Dallas vs New York R-0.5+0.5
Tampa Bay vs Arizona+0.5-0.5
+0.1-0.1
St. Louis vs Boston-0.5+0.5
Philadelphia vs Los Angeles+0.5-0.5
+0.1-0.1
Montreal vs Vancouver+0.4-0.4
+0.1-0.1

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678910111213141516Count
36-38In10098*
3417-2In991286
3216-3In9911,594
3015-4In946006,248
2814-5In7721200018,259
2613-6In4539110400043,148
2412-7100.0%143128317510079,523
2211-898.21820723211251000120,712
2010-975.90048715212014721000147,037
189-1027.200802512192217104100146,801
168-118.5080001391724221240120,553
147-127.5700139213022679,965
126-137.58000416383543,294
105-147.37002207018,474
84-158.18006866,189
63-166.571921,533
42-177.07192286
21-1817.2178329
00-191.519967
Total:52.8%7777677776666655834,096

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs