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 +0.3
Buffalo Sabres 3 Columbus Blue Jackets 5 -0.2
Sunday100.0*Average seed
New York Rangers 3 Detroit Red Wings 2 +0.5
Columbus Blue Jackets 2 Chicago Blackhawks 4 +0.3
Montreal Canadiens 3 Tampa Bay Lightning 6 -0.3
New York Islanders 3 Buffalo Sabres 2 (so)-0.1
Points
Chance Will Make Playoffs