How are these numbers calculated?

Big Games

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

Week of 4/30100.0*Average seed
Inverness CT 3 Celtic 2 -0.3
Aberdeen 1 Inverness CT 0 +0.2
Motherwell 0 Rangers 5 -0.2
Week of 5/7100.0*Average seed
Dundee Utd 4 Motherwell 0 -0.2
Inverness CT 1 St. Mirren 0 -0.1
St. Johnstone 1 Hamilton 0 -0.1
Motherwell 1 Kilmarnock 1 -0.1
Inverness CT 2 Hibernian 0 -0.0
Kilmarnock 0 Celtic 2 +0.0
Week of 5/14100.0*Average seed
St. Mirren 0 St. Johnstone 0 +0.1
Points
Chance Will Win Championship