How are these numbers calculated?

Big Games

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

Thursday100.0*Average seed
Florida 2 Boston 5 -0.3
Friday100.0*Average seed
Columbus 1 Buffalo 6 -0.2
Pittsburgh 3 NY Islanders 2 -0.2
Saturday100.0*Average seed
Buffalo 4 Pittsburgh 3 (so)-0.5
Florida 1 New Jersey 7 -0.5
Points
Chance Will Make Playoffs