How are these numbers calculated?

Big Games

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

Monday100.0*Average seed
Tampa Bay Lightning 4 Columbus Blue Jackets 5 (so)-0.1
Buffalo Sabres 3 New Jersey Devils 2 (so)+0.1
Nashville Predators 1 Philadelphia Flyers 3 -0.0
Tuesday100.0*Average seed
Columbus Blue Jackets 3 Carolina Hurricanes 2 -0.2
WednesdayNone
Points
Chance Will Make Playoffs