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
Dundee Utd 3 St Mirren 2 +11.6
-0.5
Queen of the South 1 Dumbarton 2 +4.0
-0.2
Hibernian 3 Raith Rovers 2 -2.8
+0.1
Morton 1 Ayr Utd 1 -1.9
+0.0
Week of 4/29100.0*Relegated100.0*Average seed
St Mirren 5 Raith Rovers 0 -23.1
+0.8
Ayr Utd 0 Hibernian 4 -9.2
+0.1
Dundee Utd 2 Dumbarton 2 +0.8
-0.0
Week of 5/6100.0*Relegated100.0*Average seed
Raith Rovers 2 Ayr Utd 1 +5.9
-0.2
Hibernian 1 St Mirren 1 -3.4
+0.2
Dumbarton 0 Falkirk 1 +0.3
Points
Chance Will Win Championship