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*Average seed
St Mirren 3 Morton 1 -0.4
Alloa 2 Queen of the South 2 +0.1
Week of 4/26None
Week of 5/1100.0*Average seed
Hibernian 2 Queen of the South 0 +0.2
Falkirk 1 Morton 0 -0.1
St Mirren 2 Rangers 2 +0.1
Points
Chance Will Win Championship