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-8.1+8.1
-0.6+0.6
Buffalo vs Quebec City-0.9+0.9
-0.1+0.1
Vegas vs Montreal+0.9-0.9
+0.1-0.1
Detroit vs Colorado-0.9+0.9
-0.1+0.1
Columbus vs St. Louis-0.8+0.8
-0.1+0.1
Arizona vs Pittsburgh+0.8-0.8
+0.1-0.1
Calgary vs Washington+0.8-0.8
+0.1-0.1
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Tampa Bay vs Arizona+8.1-8.1
+0.6-0.6
Montreal vs Vancouver-0.9+0.9
-0.1+0.1
Pittsburgh vs Florida-1.4+0.4
-0.1+0.0
Colorado vs Columbus+0.9-0.9
+0.1-0.1
Philadelphia vs Los Angeles-0.9+0.9
-0.1+0.1
St. Louis vs Boston+0.8-0.8
+0.1-0.1
Washington vs Chicago-0.8+0.8
-0.1+0.1
Ottawa vs Toronto-0.4+0.2
New Jersey vs New York I+0.4-0.2
Buffalo vs Detroit+0.2-0.2

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678910111213141516Count
36-38In100198*
3417-2In946303
3216-3In6928302,143
3015-4In103837105010,174
2814-5In1144029141035,781
2613-6100.0%074637910093,288
2412-799.700163930112000193,365
2211-894.103173128155100315,672
2010-962.31210222823113100412,046
189-1020.0101514242719810430,517
168-112.11000161628291630361,215
147-120.610002112838200242,809
126-130.610016295580129,041
105-140.710064242953,400
84-150.61118522916,753
63-160.61015843,783
42-170.71495596
21-18Out10063
00-191.7298181
Total:42.8%0015891010101010997212,301,328

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs