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
Senators 77.836 Rockies 103.028 +4.4
+0.7
Canucks 122.696 Coyotes 122.24 -2.0
+0.1
Flyers 135.333 North Stars 141.303 +0.7
+0.2
Jets 91.559 Rangers 108.335 -0.4
-0.1
Islanders 113.047 Ducks 131.598 -0.1
Whalers 94.499 Maple Leafs 164.822 -0.1
Lightning 130.342 Devils 95.466 -0.1
Week of 2/27100.0*Chance in playoffs100.0*Average seed
Oilers 162.424 Coyotes 164.588 -0.4
-0.1
Canucks 141.462 Bruins 124.063 -0.4
-0.1
Rockies 140.423 Canadiens 132.252 In
+0.5
Sharks 195.778 Flyers 176.404 In
+0.1
Maple Leafs 149.305 Jets 106.667 -0.2
Rangers 154.234 Whalers 106.165 -0.1
If winner is:HomeAway
Week of 3/6100.0*Chance in playoffs100.0*Average seed
Rockies vs Rangers+0.7-0.7
Flyers vs Maple Leafs+0.3-0.3

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314151617181920Count
161-0In505011,889,898
150-1In010011,878,262
Total:In25255023,768,160
Games Above .500
Chance Will Make Playoffs