How are these numbers calculated?

Big Games

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

Week of 4/16100.0*Relegated100.0*Average seed
Dumbarton 2 Raith Rovers 3 +0.4
-0.1
St Mirren 3 Morton 1 -0.1
Alloa 2 Queen of the South 2 +0.0
Week of 4/26100.0*Relegated100.0*Average seed
Hibernian 4 Dumbarton 0 -0.1
Week of 5/1None
Points
Chance Will Win Championship