How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 2/20100.0*Chance in playoffs100.0*Average seed
Bruins 131.979 Blackhawks 119.466 +1.6
+0.7
Canucks 122.696 Coyotes 122.24 +1.4
Jets 91.559 Rangers 108.335 -0.2
Islanders 113.047 Ducks 131.598 -0.2
-0.1
Oilers 142.703 Capitals 166.044 -0.1
-0.1
Flyers 135.333 North Stars 141.303 +0.1
Lightning 130.342 Devils 95.466 +0.2
Week of 2/27100.0*Chance in playoffs100.0*Average seed
Canucks 141.462 Bruins 124.063 Out
-0.7
Oilers 162.424 Coyotes 164.588 Out
-0.2
Devils 118.912 Capitals 150.193 -1.2
-0.1
Ducks 185.693 Lightning 134.659 -1.2
-0.2
Sharks 195.778 Flyers 176.404 +1.0
Week of 3/6None

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314151617181920Count
10-11Out10023,768,160*
Total:Out10023,768,160

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs