How are these numbers calculated?

Big Games

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

Thursday100.0*Average seed
Philadelphia 1 Nashville 3 +0.4
San Jose 3 Dallas 4 (ot)-0.2
Calgary 3 Vegas 1 -0.1
FridayNone
Saturday100.0*Average seed
Los Angeles 2 Dallas 5 -0.3
Colorado 1 St Louis 3 +0.2
Points
Chance Will Make Playoffs