How are these numbers calculated?

Big Games

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

Week of 4/25100.0*Promoted100.0*Average seed
Milton Keynes 0 Walsall 1 +16.5
+0.2
Colchester 0 Peterborough 1 +15.6
+0.2
Northampton 0 Milton Keynes 1 -15.2
-0.2
Swindon 2 Bristol Rovers 1 *-0.1
Week of 5/2None

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Win Championship