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*Relegated100.0*Average seed
Queen of the South 1 Dumbarton 2 -11.0
+0.6
Dundee Utd 3 St Mirren 2 -2.7
+0.2
Hibernian 3 Raith Rovers 2 -0.6
+0.1
Morton 1 Ayr Utd 1 -0.2
+0.0
Week of 4/29100.0*Relegated100.0*Average seed
Dundee Utd 2 Dumbarton 2 -1.2
+0.1
St Mirren 5 Raith Rovers 0 +1.1
Ayr Utd 0 Hibernian 4 -0.2
+0.0
Falkirk 2 Queen of the South 2 -0.0
Week of 5/6100.0*Relegated100.0*Average seed
Raith Rovers 2 Ayr Utd 1 +0.9
-0.1
Hibernian 1 St Mirren 1 +0.9
-0.2
Dumbarton 0 Falkirk 1 +0.7
-0.2
Points
Chance Will Win Championship