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
San Jose vs Tampa Bay+7.3-7.3
+0.8-0.8
Columbus vs St. Louis+0.5-0.5
+0.1-0.1
Calgary vs Washington-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
-0.1+0.1
Arizona vs Pittsburgh-0.5+0.5
-0.1+0.1
Detroit vs Colorado+0.5-0.5
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Winnipeg vs San Jose-8.9+8.8
-0.9+0.9
Tampa Bay vs Arizona+0.5-0.5
+0.1-0.1
Washington vs Chicago+0.5-0.5
Colorado vs Columbus-0.5+0.5
St. Louis vs Boston-0.5+0.5
-0.1+0.1
Philadelphia vs Los Angeles+0.5-0.5
+0.1-0.1
Dallas vs New York R-0.7+0.2
-0.1+0.0
Montreal vs Vancouver+0.4-0.4
+0.1-0.1

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678910111213141516Count
34-38In100816*
3216-3In9913,654
3015-4In9550015,211
2814-5In8117100048,138
2613-6In513690300114,758
2412-7100.0%17342631541000220,124
2211-898.92921725201141000334,886
2010-978.9004971622201362000412,516
189-1028.3008026132022179310412,787
168-119.00800014102025211020334,981
147-128.180013122632170219,937
126-138.08001832482115,872
105-148.080111611947,711
84-158.0802484115,469
63-167.88013793,626
42-176.97489598
21-186.269465
00-191.7298179
Total:53.8%77777777777777612,301,328

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs