How are these numbers calculated?

Big Games

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

Week of 5/6100.0*Relegated100.0*Average seed
Kilmarnock 0 Dundee 1 -7.3
+0.7
Motherwell 0 Ross County 1 -2.5
+0.0
Inverness CT 2 Hamilton 1 -1.2
+0.1
Week of 5/13100.0*Relegated100.0*Average seed
Ross County 3 Hamilton 2 No
-0.1
Motherwell 3 Kilmarnock 1 +0.9
-0.1
Kilmarnock 2 Inverness CT 1 -0.4
-0.2
Dundee 1 Ross County 1 -0.4
-0.2
Hamilton 0 Motherwell 1 -0.0
Dundee 0 Inverness CT 2 -0.6
St. Johnstone 1 Partick Thistle 0 +0.1
Week of 5/20100.0*Relegated100.0*Average seed
Hamilton 4 Dundee 0 -0.3
Inverness CT 3 Motherwell 2 +0.3
Points
Chance Will Win Championship