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
NY Islanders 2 NY Rangers 1 +20.0
+0.7
Columbus 2 Pittsburgh 3 -12.0
-0.2
Detroit 2 Montreal 4 -6.3
-0.2
New Jersey 4 Toronto 1 +6.2
+0.2
Florida 3 Boston 2 -4.8
-0.2
Friday100.0*Chance in playoffs100.0*Average seed
Pittsburgh 3 Ottawa 2 (so)-0.2
Saturday100.0*Chance in playoffs100.0*Average seed
Detroit 3 NY Islanders 1 Out
-0.7
Toronto 2 Montreal 3 (so)-0.5
Florida 2 Buffalo 1 -0.2
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
NY Islanders 2 NY Rangers 1 -1.2
Columbus 2 Pittsburgh 3 +0.3
Detroit 2 Montreal 4 +0.3
Florida 3 Boston 2 +0.3
New Jersey 4 Toronto 1 -0.2
Edmonton 3 Vegas 2 -0.2
San Jose 1 Colorado 5 -0.1
Los Angeles 4 Minnesota 2 -0.1
Friday100.0*Lottery seed
Pittsburgh 3 Ottawa 2 (so)+0.2
Saturday100.0*Lottery seed
Detroit 3 NY Islanders 1 +0.9
Toronto 2 Montreal 3 (so)+0.5
Florida 2 Buffalo 1 +0.2
San Jose 1 Minnesota 2 +0.2