How are these numbers calculated?

Big Games

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

Monday, 4/1100.0*Average seed
OS 20 HA 21 -0.9
RS 22 OS 27 +0.3
LO 25 JPP 18 -0.0
Monday, 4/8100.0*Average seed
LO 19 OS 14 -0.3
HA 26 BF 15 -0.0
JPP 22 HA 26 -0.0
Wednesday, 4/10None
Games Above .500
Chance Will Make Playoffs