How are these numbers calculated?

Big Games

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

Week of 5/4100.0*Relegated100.0*Average seed
Dundee 0 Hamilton Accies 1 -1.7
+0.0
Motherwell 1 St Mirren 1 -0.2
Week of 5/11100.0*Relegated100.0*Average seed
Livingston 0 Dundee 1 +12.0
-0.2
Week of 5/18100.0*Relegated100.0*Average seed
Hamilton Accies 2 St Johnstone 0 +23.3
-0.5
Dundee 2 St Mirren 3 -16.6
+0.3
Points
Chance Will Win Championship