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*Promoted100.0*Average seed
Dumbarton 3 East Fife 0 -4.1
-0.4
Montrose 2 Airdrieonians 1 -3.8
-0.1
Week of 4/27100.0*Promoted100.0*Average seed
Stenhousemuir 1 East Fife 1 No
-0.0
Forfar Athletic 1 Montrose 0 +1.1
+0.0
Airdrieonians 3 Arbroath 0 -0.2
Dumbarton 2 Stranraer 1 -0.0
Week of 5/4100.0*Promoted100.0*Average seed
East Fife 2 Forfar Athletic 3 -0.5
Stranraer 1 Airdrieonians 4 -0.3
Arbroath 1 Dumbarton 1 -0.1
Points
Chance Will Win Championship