How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 4/25100.0*Relegated100.0*Average seed
Southampton 2 Burnley 2 +6.0
-0.2
Norwich 0 Reading 2 -1.5
+0.1
Blackpool 1 Nottm Forest 1 -0.3
QPR 0 Plymouth 0 +0.1
Barnsley 1 Wolves 1 +0.1
Week of 5/3100.0*Relegated100.0*Average seed
Nottm Forest 3 Southampton 1 -0.2
Charlton 4 Norwich 2 +0.1
Points
Chance Will Win Championship