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
Arizona vs Pittsburgh+7.2-7.2
+0.8-0.8
San Jose vs Tampa Bay-0.6+0.6
-0.1+0.1
Columbus vs St. Louis+0.6-0.6
+0.1-0.1
Calgary vs Washington-0.5+0.5
-0.1+0.1
Buffalo vs Quebec City+0.5-0.5
Detroit vs Colorado+0.5-0.5
+0.1-0.0
Vegas vs Montreal-0.4+0.4
-0.1+0.1
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Tampa Bay vs Arizona-7.3+7.2
-0.8+0.8
Montreal vs Vancouver+0.6-0.6
+0.1-0.1
Dallas vs New York R-0.5+0.5
-0.1+0.1
St. Louis vs Boston-0.5+0.5
-0.1+0.1
Washington vs Chicago+0.5-0.5
+0.1-0.1
Philadelphia vs Los Angeles+0.5-0.5
+0.1-0.1
Colorado vs Columbus-0.4+0.4

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678910111213141516Count
36-38In10097*
3417-2In991253
3216-3In9911,518
3015-4In946006,124
2814-5In782020018,537
2613-6In4638110400043,482
2412-7100.0%1532273175100080,390
2211-898.61820724211251000120,663
2010-977.00048715222114720000147,137
189-1027.600802512192217103100146,503
168-118.608001391824221240120,210
147-127.5800039223022679,799
126-137.88000416383543,148
105-147.6802207018,174
84-157.4706866,119
63-168.281911,560
42-176.0694285
21-1813.3138730
00-191.519967
Total:53.3%7777777766666655834,096

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs