How are these numbers calculated?

Big Games

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

Week of 4/16100.0*Promoted100.0*Average seed
Annan Athletic 1 East Stirling 3 +0.1
Montrose 1 Stirling Albion 1 No
-0.1
Arbroath 1 Berwick 2 -0.2
Week of 4/23100.0*Promoted100.0*Average seed
Berwick 2 East Fife 0 -0.3
Stirling Albion 2 Annan Athletic 1 +0.3
Week of 4/30100.0*Promoted100.0*Average seed
Montrose 1 Berwick 0 +0.3
Clyde 3 Stirling Albion 1 -0.3
Points
Chance Will Win Championship