How are these numbers calculated?

Big Games

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

Monday100.0*Average seed
Buffalo Sabres 3 New Jersey Devils 2 (so)+0.2
Tampa Bay Lightning 4 Columbus Blue Jackets 5 (so)-0.1
Tuesday100.0*Average seed
Columbus Blue Jackets 3 Carolina Hurricanes 2 -0.3
WednesdayNone
Points
Chance Will Make Playoffs