How are these numbers calculated?

Big Games

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

Week of 4/28100.0*Average seed
Kilmarnock 4 Inverness Caledonian Thistle FC 3 +0.4
Dunfermline 3 Aberdeen 0 +0.1
Kilmarnock 0 St. Mirren 2 -0.4
Aberdeen 1 Hibernian 2 +0.1
St. Mirren 1 Hibernian 0 -0.1
Hearts 0 Motherwell 1 +0.0
Week of 5/5100.0*Average seed
St. Mirren 0 Inverness Caledonian Thistle FC 1 +0.1
Kilmarnock 1 Aberdeen 1 -0.0
Week of 5/13100.0*Average seed
St. Johnstone 0 Rangers 4 +0.1
Points
Chance Will Win Championship