How are these numbers calculated?

Big Games

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

Week of 4/22100.0*Promoted100.0*Relegated100.0*Average seed
Livingston 4 Queens Park 0 -2.8
-0.3
Airdrieonians 0 Alloa Athletic 1 +1.1
+0.1
Albion Rovers 0 East Fife 1 -1.0
-0.1
Brechin 0 Stranraer 0 +0.4
+0.1
Peterhead 0 Stenhousemuir 1 No
Week of 4/29100.0*Promoted100.0*Relegated100.0*Average seed
Queens Park 0 Stenhousemuir 2 -5.7
-0.7
Brechin 1 Albion Rovers 0 -2.7
-0.2
East Fife 0 Airdrieonians 4 +0.1
+0.1
Alloa Athletic 1 Stranraer 0 +0.0
Week of 5/6100.0*Promoted100.0*Relegated100.0*Average seed
Airdrieonians 3 Queens Park 2 No
-0.4
Stranraer 2 East Fife 1 +0.9
+0.3
Stenhousemuir 1 Brechin 1 -0.5
-0.0
Points
Chance Will Win Championship