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
Burton Albion 1 Plymouth Argyle 0 +10.1
+0.5
Northampton 0 York 2 +6.8
+0.2
Rotherham 2 Fleetwood Town 1 -2.9
-0.1
Cheltenham Town 1 Gillingham 0 -2.9
-0.2
Chesterfield 2 Bradford City 2 +0.3
+0.0
Rochdale 2 Port Vale 2 -0.2
Week of 4/20100.0*League One100.0*Average seed
Plymouth Argyle 0 Rotherham 1 -12.2
-0.2
Bradford City 1 Burton Albion 0 -9.9
-0.3
Exeter City 0 Cheltenham Town 1 -5.5
-0.3
Port Vale 2 Northampton 2 +0.2
Week of 4/27100.0*League One100.0*Average seed
Burton Albion 3 Gillingham 2 +1.3
+0.5
Cheltenham Town 0 Bradford City 0 +0.8
+0.2
Rotherham 2 Aldershot Town 0 -0.8
-0.0
Northampton 2 Barnet 0 -0.2
Points
Chance Will Win Championship