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
Hibernian 5 Kilmarnock 3 +0.3
Celtic 5 Rangers 0 +0.1
Week of 5/5100.0*Average seed
Hearts 2 Hibernian 1 -0.3
Rangers 1 Kilmarnock 0 -0.2
Aberdeen 0 Hibernian 0 -0.1
Week of 5/12100.0*Average seed
Hibernian 5 Rangers 5 -0.2
Points
Chance Will Win Championship