How are these numbers calculated?

Big Games

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

Week of 5/7100.0*Average seed
Inverness CT 0 Livingston 1 +0.3
Motherwell 2 Hibernian 2 -0.2
Week of 5/14100.0*Average seed
Rangers 4 Motherwell 1 -0.2
Kilmarnock 2 Livingston 0 -0.2
Dundee 1 Inverness CT 1 +0.1
Week of 5/21100.0*Average seed
Inverness CT 0 Dundee Utd 1 +0.5
Kilmarnock 4 Dunfermline 0 -0.2
Points
Chance Will Win Championship