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 York Rangers 4 New York Islanders 3 +0.2
Buffalo Sabres 3 Columbus Blue Jackets 5 -0.2
New Jersey Devils 3 Tampa Bay Lightning 2 +0.1
Sunday100.0*Average seed
New York Rangers 3 Detroit Red Wings 2 +0.4
Montreal Canadiens 3 Tampa Bay Lightning 6 -0.3
Columbus Blue Jackets 2 Chicago Blackhawks 4 +0.2
New York Islanders 3 Buffalo Sabres 2 (so)-0.0
Points
Chance Will Make Playoffs