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*Relegated100.0*Average seed
Motherwell 1 St Mirren 2 +5.2
-0.1
Hamilton Accies 0 Motherwell 0 +4.4
-0.1
Aberdeen 1 Ross County 2 +1.0
Week of 3/3100.0*Relegated100.0*Average seed
Rangers 0 Hamilton Accies 1 -14.5
+0.3
Hibernian 1 Hearts 3 +11.2
-0.2
St Mirren 0 St Johnstone 0 -0.1
Week of 3/7100.0*Relegated100.0*Average seed
Hamilton Accies 1 Kilmarnock 0 -23.1
+0.5
St Mirren 1 Hearts 0 +18.6
-0.4
Celtic 5 St Mirren 0 -5.2
+0.1
Hearts 1 Motherwell 1 -5.0
+0.1
Points
Chance Will Win Championship