How are these numbers calculated?

Big Games

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

Week of 4/13100.0*League One100.0*Average seed
Rotherham 2 Fleetwood Town 1 +8.6
+0.6
Northampton 0 York 2 +5.0
+0.2
Burton Albion 1 Plymouth Argyle 0 -2.9
-0.1
Cheltenham Town 1 Gillingham 0 -2.2
-0.2
Chesterfield 2 Bradford City 2 +0.3
+0.0
AFC Wimbledon 2 Exeter City 2 +0.2
Rochdale 2 Port Vale 2 -0.1
Week of 4/20100.0*League One100.0*Average seed
Plymouth Argyle 0 Rotherham 1 +19.3
+0.5
Exeter City 0 Cheltenham Town 1 -11.0
-0.3
Bradford City 1 Burton Albion 0 +7.6
+0.1
Port Vale 2 Northampton 2 +0.3
+0.1
Week of 4/27100.0*League One100.0*Average seed
Rotherham 2 Aldershot Town 0 Yes
+0.3
Cheltenham Town 0 Bradford City 0 +6.8
+0.1
Burton Albion 3 Gillingham 2 -1.3
Wycombe 1 Port Vale 1 +0.3
Points
Chance Will Win Championship