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
Millwall 2 Leyton Orient 1 +8.5
+0.2
Leeds 4 Milton Keynes 1 -7.1
-0.1
Exeter City 1 Charlton 1 +0.9
+0.0
Wycombe 2 Swindon 2 +0.4
+0.0
Week of 5/1100.0*Promoted100.0*Average seed
Tranmere 2 Millwall 0 -23.8
-0.5
Charlton 1 Leeds 0 +16.0
+0.2
Swindon 3 Brentford 2 -1.0
-0.1
Week of 5/8100.0*Promoted100.0*Average seed
Leeds 2 Bristol Rovers 1 -16.3
-0.2
Millwall 3 Swindon 2 +11.8
+0.7
Oldham 0 Charlton 2 -0.7
-0.2
Exeter City 2 Huddersfield 1 +0.5
+0.2
Points
Chance Will Win Championship