How are these numbers calculated?

Big Games

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

Wednesday100.0*Pres Trophy100.0*Average seed
Dallas Stars 3 Chicago Blackhawks 2 No
-0.6
Thursday100.0*Pres Trophy100.0*Average seed
Chicago Blackhawks 3 Nashville Predators 4 -1.7
Vancouver Canucks 2 St. Louis Blues 3 -0.7
Colorado Avalanche 2 San Jose Sharks 6 +0.3
Points
Chance Will Make Playoffs