How are these numbers calculated?

Big Games

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

Week of 4/24100.0*Relegated100.0*Average seed
Colchester 1 Tranmere 1 +7.4
-0.2
Norwich 2 Gillingham 0 -6.9
+0.2
Millwall 2 Leyton Orient 1 -1.8
+0.1
Wycombe 2 Swindon 2 -0.4
+0.0
Brentford 1 Yeovil 1 +0.2
Exeter City 1 Charlton 1 -0.2
+0.0
Week of 5/1100.0*Relegated100.0*Average seed
Tranmere 2 Millwall 0 -30.6
+0.8
Gillingham 2 Southampton 1 +11.9
-0.2
Hartlepool 1 Exeter City 1 +0.8
+0.0
Leyton Orient 2 Wycombe 0 +0.6
Week of 5/8100.0*Relegated100.0*Average seed
Stockport 0 Tranmere 3 -47.9
+0.9
Exeter City 2 Huddersfield 1 +15.0
-0.1
Wycombe 3 Gillingham 0 -3.2
+0.1
Colchester 1 Leyton Orient 0 -3.2
+0.2
Points
Chance Will Win Championship