How are these numbers calculated?

Big Games

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

Week of 4/22100.0*Average seed
Dundee Utd 3 St Mirren 2 +0.4
Dunfermline 1 Falkirk 2 -0.2
Morton 1 Ayr Utd 1 +0.1
Week of 4/29100.0*Average seed
Dunfermline 3 Morton 1 +0.1
Dundee Utd 2 Dumbarton 2 -0.1
Falkirk 2 Queen of the South 2 +0.0
Week of 5/6100.0*Average seed
Dumbarton 0 Falkirk 1 -0.3
Morton 1 Dundee Utd 1 -0.2
Points
Chance Will Win Championship