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*Average seed
Celtic 4 St. Johnstone 1 +0.1
Partick Thistle 1 Rangers 2 +0.1
Week of 5/13None
Week of 5/20None
Points
Chance Will Win Championship