How are these numbers calculated?

Big Games

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

Week of 10/1100.0*Chance in playoffs100.0*Pres Trophy100.0*Average seed
NY Islanders 3 Columbus 2 (so)In
No
+4.8
Tampa Bay 1 Detroit 2 (so)+23.5
+0.0
Points
Chance Will Make Playoffs

Lottery

Why are you looking down here? We just made the playoffs!

Big Games

Week of 10/1100.0*Lottery seed
NY Islanders 3 Columbus 2 (so)-9.4
Tampa Bay 1 Detroit 2 (so)-0.3