How are these numbers calculated?

Big Games

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

Week of 4/23100.0*Average seed
Plymouth 2 Dag & Red 3 +0.1
Accrington 3 York 0 +0.1
Week of 4/30100.0*Average seed
Dag & Red 3 Crawley 0 +0.2
York 1 Bristol Rovers 4 +0.2
Week of 5/7100.0*Average seed
Bristol Rovers 2 Dag & Red 1 -0.3
Points
Chance Will Win Championship