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*Promoted100.0*Average seed
Stockport 0 Huddersfield 6 +1.9
+0.4
Colchester 1 Tranmere 1 +0.7
+0.0
Southampton 3 Carlisle 2 -0.4
Leeds 4 Milton Keynes 1 -0.1
Millwall 2 Leyton Orient 1 -0.1
Week of 5/1100.0*Promoted100.0*Average seed
Huddersfield 2 Colchester 1 +0.5
Charlton 1 Leeds 0 -0.2
Swindon 3 Brentford 2 -0.1
Week of 5/8100.0*Promoted100.0*Average seed
Exeter City 2 Huddersfield 1 -0.6
Oldham 0 Charlton 2 -0.2
Leeds 2 Bristol Rovers 1 -0.1
Millwall 3 Swindon 2 +0.1
Points
Chance Will Win Championship