How are these numbers calculated?

Big Games

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

FridayNone
Saturday100.0*Average seed
New Jersey Devils 3 Tampa Bay Lightning 2 -0.5
Buffalo Sabres 3 Columbus Blue Jackets 5 +0.3
Sunday100.0*Average seed
Montreal Canadiens 3 Tampa Bay Lightning 6 +0.5
New York Islanders 3 Buffalo Sabres 2 (so)+0.3
New York Rangers 3 Detroit Red Wings 2 -0.1
Points
Chance Will Make Playoffs