How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 4/19100.0*Promoted100.0*Average seed
Cowdenbeath 4 Livingston 0 -0.5
-0.4
Dumbarton 0 Queen of the South 3 -0.2
Falkirk 2 Raith Rovers 1 +0.1
Hamilton 2 Alloa Athletic 1 +0.0
Week of 4/26100.0*Promoted100.0*Average seed
Queen of the South 2 Livingston 0 -0.2
Raith Rovers 1 Cowdenbeath 2 +0.1
Dumbarton 4 Hamilton 1 -0.1
Alloa Athletic 0 Dundee 3 +0.0
Week of 5/3100.0*Promoted100.0*Average seed
Livingston 2 Raith Rovers 0 +0.4
Falkirk 3 Alloa Athletic 1 +0.0
Points
Chance Will Win Championship