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
HCA 4 HCC 2 +1.4
Wednesday, 2/26100.0*Average seed
HCC 3 HCA 9 +1.4
HCT 1 EHCV 4 -0.1
GCK 1 EHCK 6 -0.1
SCL 4 EHCO 1 +0.0
Friday, 2/28100.0*Average seed
HCA 7 HCC 3 +0.7
EHCK 3 GCK 2 -0.3
EHCO 1 SCL 4 -0.2
EHCV 3 HCT 2 (ot)-0.1
Points
Chance Will Make Playoffs