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*Conference Nat’l100.0*Average seed
Dag & Red 0 Oxford United 1 +3.0
-1.2
Northampton 0 York 2 +1.0
-0.1
Wycombe 2 Aldershot Town 1 -0.6
Burton Albion 1 Plymouth Argyle 0 -0.2
+0.2
AFC Wimbledon 2 Exeter City 2 -0.1
+0.0
Week of 4/20100.0*Conference Nat’l100.0*Average seed
Aldershot Town 1 Dag & Red 0 +7.7
-1.2
Barnet 1 Wycombe 0 +2.3
-0.2
Morecambe 0 Torquay United 2 +1.9
-0.1
Gillingham 2 AFC Wimbledon 2 -1.0
+0.1
Bristol Rovers 0 Accrington 1 +0.7
-0.2
York 2 Southend 1 +0.2
-0.2
Plymouth Argyle 0 Rotherham 1 -0.1
+0.2
Week of 4/27100.0*Conference Nat’l100.0*Average seed
Dag & Red 0 York 1 +22.1
-1.8
AFC Wimbledon 2 Fleetwood Town 1 +16.3
-0.4
Northampton 2 Barnet 0 -9.2
+0.3
Rotherham 2 Aldershot Town 0 -4.3
+0.1
Rochdale 1 Plymouth Argyle 0 -1.4
+0.3
Torquay United 3 Bristol Rovers 3 +0.8
+0.0
Accrington 0 Oxford United 3 +0.2
Points
Chance Will Win Championship