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*Average seed
Tampa Bay 1 Detroit 2 (so)-13.2
-1.4
NY Islanders 3 Columbus 2 (so)-1.7
-0.4
Points
Chance Will Make Playoffs

Lottery

Ye of little faith, already thinking about next year. Here are the big games and what ifs for draft seeds.

Big Games

Week of 10/1100.0*Lottery seed
Tampa Bay 1 Detroit 2 (so)+2.5
NY Islanders 3 Columbus 2 (so)+0.5