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*Chance wins title100.0*Promoted100.0*Average seed
Leeds 4 Milton Keynes 1 +0.4
+16.6
+0.5
Norwich 2 Gillingham 0 No
Millwall 2 Leyton Orient 1 -8.3
-0.2
Wycombe 2 Swindon 2 +2.8
+0.1
Exeter City 1 Charlton 1 +0.7
+0.0
Stockport 0 Huddersfield 6 -0.1
Week of 5/1100.0*Chance wins title100.0*Promoted100.0*Average seed
Charlton 1 Leeds 0 -18.8
-0.5
Tranmere 2 Millwall 0 +13.1
+0.2
Swindon 3 Brentford 2 -2.7
-0.1
Week of 5/8100.0*Chance wins title100.0*Promoted100.0*Average seed
Leeds 2 Bristol Rovers 1 Yes
+1.0
Millwall 3 Swindon 2 -3.2
+0.0
Oldham 0 Charlton 2 -3.1
-0.4
Exeter City 2 Huddersfield 1 +0.1
Points
Chance Will Win Championship