How are these numbers calculated?

Big Games

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

Week of 4/23100.0*League One100.0*Average seed
Plymouth 2 Dag & Red 3 +0.1
Wimbledon 1 Leyton Orient 0 +0.0
+0.2
Accrington 3 York 0 -0.0
Bristol Rovers 3 Exeter 1 -0.0
Oxford Utd 2 Hartlepool 0 -0.0
Wimbledon 0 Portsmouth 1 No
-0.4
Portsmouth 2 Wycombe 1 -0.1
Week of 4/30100.0*League One100.0*Average seed
Stevenage 0 Wimbledon 0 -0.1
Hartlepool 0 Portsmouth 2 -0.1
Week of 5/7None
Points
Chance Will Win Championship