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*Average seed
Dundee 1 Aberdeen 1 -0.3
Hearts 3 St. Mirren 0 -0.1
Inverness CT 4 Motherwell 3 -0.1
Ross County 1 Celtic 1 -0.0
Week of 5/11100.0*Average seed
Inverness CT 1 Dundee Utd 2 -0.2
Dundee 2 Kilmarnock 3 -0.1
Kilmarnock 1 Hibernian 3 -0.1
St. Mirren 0 Aberdeen 0 -0.1
Motherwell 2 Ross County 0 +0.1
Hearts 1 Hibernian 2 -0.1
Week of 5/18100.0*Average seed
Aberdeen 1 Hearts 1 -0.3
Kilmarnock 1 St. Mirren 3 +0.3
Hibernian 1 Dundee 0 -0.2
Dundee Utd 0 Celtic 4 +0.2
Points
Chance Will Win Championship