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
Bristol Rovers 3 Exeter 1 +22.7
+0.7
Oxford Utd 2 Hartlepool 0 -7.1
-0.2
Accrington 3 York 0 -6.9
-0.2
Plymouth 2 Dag & Red 3 +5.9
+0.2
Portsmouth 2 Wycombe 1 -0.3
-0.1
Wimbledon 1 Leyton Orient 0 -0.2
Wimbledon 0 Portsmouth 1 -0.1
Week of 4/30100.0*League One100.0*Average seed
York 1 Bristol Rovers 4 +29.8
+0.7
Carlisle 0 Oxford Utd 2 -11.5
-0.2
Wycombe 0 Accrington 1 -10.3
-0.2
Cambridge 2 Plymouth 2 +2.4
+0.1
Hartlepool 0 Portsmouth 2 -0.3
-0.1
Week of 5/7100.0*League One100.0*Average seed
Bristol Rovers 2 Dag & Red 1 +52.3
+0.8
Oxford Utd 3 Wycombe 0 -10.2
-0.2
Accrington 0 Stevenage 0 +5.3
+0.1
Points
Chance Will Win Championship