How are these numbers calculated?

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

Wednesday100.0*Lottery seed
Nashville 5 St Louis 3 -0.2
Buffalo 1 NY Islanders 5 +0.2
Washington 3 NY Rangers 4 (ot)+0.2
Arizona 3 Colorado 1 -0.2
Vegas 1 Anaheim 3 -0.1
Thursday100.0*Lottery seed
Calgary 2 San Jose 3 (so)+1.5
Montreal 2 Tampa Bay 1 (ot)+0.2
Boston 2 Washington 3 (so)+0.1
Toronto 4 Arizona 2 +0.1
Vegas 1 Los Angeles 2 (ot)+0.1
Philadelphia 1 Florida 3 -0.0
Friday100.0*Lottery seed
Toronto 1 Colorado 3 +0.2
Calgary 3 Anaheim 4 (so)-0.2
Points
Chance Will Make Playoffs