How are these numbers calculated?

Big Games

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

Week of 4/18100.0*Promoted100.0*Average seed
Montrose 2 Elgin City 1 +0.2
+0.1
East Stirling 0 Berwick 4 +0.2
+0.7
Annan Athletic 2 East Fife 1 +0.1
-0.2
Clyde 2 Albion Rovers 3 +0.1
Week of 4/25100.0*Promoted100.0*Average seed
Berwick 0 East Fife 3 No
-0.8
Elgin City 4 Annan Athletic 5 -0.2
-0.1
Montrose 0 Clyde 1 -0.1
Queens Park 1 East Stirling 1 +0.0
Week of 5/2100.0*Promoted100.0*Average seed
Arbroath 5 Berwick 0 -0.8
Clyde 2 Queens Park 0 -0.4
East Stirling 1 Albion Rovers 5 +0.2
East Fife 3 Elgin City 1 +0.1
Points
Chance Will Win Championship