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
Detroit vs Colorado-7.4+7.4
-0.8+0.8
San Jose vs Tampa Bay-0.5+0.5
Buffalo vs Quebec City+0.5-0.5
+0.1-0.1
Columbus vs St. Louis+0.5-0.5
+0.1-0.1
Calgary vs Washington-0.5+0.5
-0.1+0.1
Vegas vs Montreal-0.5+0.5
Arizona vs Pittsburgh-0.5+0.5
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Colorado vs Columbus+7.3-7.3
+0.8-0.8
Dallas vs New York R-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
Philadelphia vs Los Angeles+0.5-0.5
Tampa Bay vs Arizona+0.4-0.4
St. Louis vs Boston-0.4+0.4

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678910111213141516Count
34-38In100392*
3216-3In98201,558
3015-4In946006,157
2814-5In7720201018,470
2613-6In463711051043,296
2412-7100.0%1430273196100080,156
2211-898.41718725221251000120,305
2010-976.20038716222114720000146,900
189-1027.400802512192217103100146,894
168-118.6080001391824221240119,767
147-127.5700039223022680,403
126-137.4701416383543,187
105-147.6802207018,538
84-157.5706866,142
63-167.781911,559
42-179.39090270
21-1810.8118937
00-191.529865
Total:53.0%7667777776666655834,096

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs