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 +16.3
+0.7
Northampton 0 York 2 +4.5
+0.2
Rotherham 2 Fleetwood Town 1 -4.5
-0.2
Cheltenham Town 1 Gillingham 0 -3.6
-0.2
Chesterfield 2 Bradford City 2 +0.6
+0.0
Rochdale 2 Port Vale 2 -0.3
Week of 4/20100.0*League One100.0*Average seed
Bradford City 1 Burton Albion 0 -17.0
-0.5
Plymouth Argyle 0 Rotherham 1 -12.9
-0.2
Exeter City 0 Cheltenham Town 1 -5.1
-0.2
Port Vale 2 Northampton 2 -0.2
Week of 4/27100.0*League One100.0*Average seed
Burton Albion 3 Gillingham 2 +7.8
+0.6
Rotherham 2 Aldershot Town 0 -4.7
-0.1
Cheltenham Town 0 Bradford City 0 +2.8
+0.1
Northampton 2 Barnet 0 -0.2
Points
Chance Will Win Championship