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
Southampton 3 Carlisle 2 +0.5
+0.3
Stockport 0 Huddersfield 6 No
Colchester 1 Tranmere 1 +0.1
+0.0
Brighton 2 Bristol Rovers 1 +0.0
Week of 5/1100.0*Promoted100.0*Average seed
Huddersfield 2 Colchester 1 +0.2
Gillingham 2 Southampton 1 -0.2
Week of 5/8100.0*Promoted100.0*Average seed
Southampton 3 Southend 1 +0.3
Colchester 1 Leyton Orient 0 -0.3
Points
Chance Will Win Championship