How are these numbers calculated?

Big Games

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

Sunday, 2/23100.0*Average seed
EHCK 4 GCK 3 (ot)-0.5
Wednesday, 2/26100.0*Average seed
GCK 1 EHCK 6 -1.6
HCC 3 HCA 9 +0.1
Friday, 2/28100.0*Average seed
EHCK 3 GCK 2 -1.0
HCA 7 HCC 3 +0.3
EHCO 1 SCL 4 +0.2
EHCV 3 HCT 2 (ot)+0.1
Points
Chance Will Make Playoffs