How are these numbers calculated?

Big Games

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

Week of 2/22100.0*Average seed
Aberdeen 1 Ross County 2 -0.4
Motherwell 1 St Mirren 2 +0.2
Hibernian 1 Livingston 1 +0.1
Hamilton Accies 0 Motherwell 0 +0.1
Week of 3/3100.0*Average seed
Motherwell 4 Ross County 1 -0.2
Hibernian 1 Hearts 3 +0.1
Kilmarnock 2 Aberdeen 2 -0.0
Livingston 2 Celtic 2 -0.0
Week of 3/7100.0*Average seed
Aberdeen 3 Hibernian 1 +0.3
St Johnstone 1 Livingston 0 +0.2
Hearts 1 Motherwell 1 -0.1
Points
Chance Will Win Championship