How are these numbers calculated?

Big Games

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

Week of 4/20100.0*Relegated100.0*Average seed
Stenhousemuir 0 Forfar Athletic 3 +10.9
-0.2
Stranraer 3 Brechin 0 -7.6
+0.1
Dumbarton 3 East Fife 0 +1.2
-0.1
Week of 4/27100.0*Relegated100.0*Average seed
Raith Rovers 3 Brechin 2 -5.9
+0.1
Stenhousemuir 1 East Fife 1 -4.0
+0.1
Week of 5/4100.0*Relegated100.0*Average seed
Brechin 1 Stenhousemuir 1 -31.8
+0.4
Points
Chance Will Win Championship