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
Norwich 2 Gillingham 0 +5.3
-0.3
Colchester 1 Tranmere 1 +1.5
-0.0
Wycombe 2 Swindon 2 -0.9
+0.0
Exeter City 1 Charlton 1 -0.5
+0.1
Oldham 2 Southend 2 -0.2
+0.0
Millwall 2 Leyton Orient 1 -0.1
+0.1
Brentford 1 Yeovil 1 +0.1
-0.0
Week of 5/1100.0*Relegated100.0*Average seed
Gillingham 2 Southampton 1 -21.0
+1.2
Tranmere 2 Millwall 0 +16.9
-0.4
Hartlepool 1 Exeter City 1 +3.9
-0.1
Leyton Orient 2 Wycombe 0 -2.9
-0.1
Yeovil 3 Oldham 0 +0.1
-0.1
Week of 5/8100.0*Relegated100.0*Average seed
Exeter City 2 Huddersfield 1 +17.6
-0.4
Stockport 0 Tranmere 3 +16.0
-0.5
Wycombe 3 Gillingham 0 +3.1
-0.9
Brentford 0 Hartlepool 0 -0.2
Brighton 1 Yeovil 0 +0.1
Oldham 0 Charlton 2 +0.1
Colchester 1 Leyton Orient 0 +0.0
Points
Chance Will Win Championship