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-8.0+8.0
-0.6+0.6
Calgary vs Washington+0.9-0.9
+0.1-0.1
Columbus vs St. Louis-0.9+0.9
-0.1+0.1
Detroit vs Colorado-0.9+0.9
-0.1+0.1
Vegas vs Montreal+0.9-0.9
+0.1-0.1
Buffalo vs Quebec City-0.8+0.8
-0.1+0.1
San Jose vs Tampa Bay+0.8-0.8
+0.1-0.1
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Pittsburgh vs Florida+13.6-3.8
+1.1-0.3
Colorado vs Columbus+0.9-0.9
+0.1-0.1
Tampa Bay vs Arizona-0.9+0.9
-0.1+0.1
Washington vs Chicago-0.9+0.9
-0.1+0.1
St. Louis vs Boston+0.9-0.9
+0.1-0.1
Philadelphia vs Los Angeles-0.9+0.9
-0.1+0.1
Montreal vs Vancouver-0.9+0.9
-0.1+0.1
New Jersey vs New York I+0.4-0.2
Buffalo vs Detroit+0.2-0.2
Ottawa vs Toronto-0.3+0.1

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678910111213141516Count
36-38In100207*
3417-2In9730267
3216-3In7027301,807
3015-4In10394010109,414
2814-5In115453081032,253
2613-6100.0%00105032710087,605
2412-799.700183929102000184,051
2211-894.4041731281451000306,492
2010-962.801210222822113100406,074
189-1020.2101514242719810433,008
168-112.11000161628291630369,695
147-120.6100002112838200252,606
126-130.610016295580136,351
105-140.610064243957,757
84-150.51118522918,396
63-160.50015844,409
42-171.41395702
21-181.929854
00-191.7298180
Total:41.6%0015799101010101097212,301,328

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs