How are these numbers calculated?

Big Games

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

Week of 3/11100.0*Chance in playoffs100.0*Average seed
Blackhawks 6 Canadiens 4 +0.5
-0.1
If winner is:HomeAway
Week of 3/18100.0*Chance in playoffs100.0*Average seed
Canadiens vs Stars-24.0+34.9
-0.6+0.9
Rangers vs Jets+0.6-23.9
+0.0-0.2
Flyers vs Blackhawks+0.6-22.3
+0.0-0.3

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456Count
82-0-0In197222,648,062
5.51-1-097.5%97365,702,939
30-2-0Out10047,977,227
Total:63.6%01647135136,328,228
Points
Chance Will Make Playoffs