How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Thursday100.0*Chance in playoffs100.0*Average seed
Columbus 3 Tampa Bay 2 -8.1
-0.2
Philadelphia 1 Nashville 3 +7.8
+0.1
Pittsburgh 3 NY Rangers 1 -0.0
Friday100.0*Chance in playoffs100.0*Average seed
Carolina 1 Columbus 4 +0.1
Saturday100.0*Chance in playoffs100.0*Average seed
Buffalo 1 Philadelphia 2 (ot)*Out
Detroit 5 Tampa Bay 1 Out
-0.3
Ottawa 2 Pittsburgh 1 +0.2

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Make Playoffs

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Thursday100.0*Lottery seed
Columbus 3 Tampa Bay 2 +0.7
Washington 3 Minnesota 6 +0.2
Calgary 3 Vegas 1 -0.2
Philadelphia 1 Nashville 3 -0.2
Pittsburgh 3 NY Rangers 1 +0.0
San Jose 3 Dallas 4 (ot)-0.0
Friday100.0*Lottery seed
Carolina 1 Columbus 4 -0.1
Saturday100.0*Lottery seed
Detroit 5 Tampa Bay 1 +0.7
Vancouver 0 Vegas 1 +0.2
Nashville 5 Minnesota 6 (so)+0.2
Ottawa 2 Pittsburgh 1 -0.2