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*Chance wins title100.0*Promoted100.0*Average seed
Peterhead 1 Forfar Athletic 0 +10.3
+7.7
+0.2
Stirling Albion 0 Morton 2 +5.9
+4.4
+0.2
Stranraer 3 Stenhousemuir 2 -2.0
-1.5
-0.1
Week of 4/25100.0*Chance wins title100.0*Promoted100.0*Average seed
Stranraer 0 Morton 2 +37.4
+28.1
+0.8
Dunfermline 1 Forfar Athletic 3 -8.5
-6.4
-0.2
Week of 5/2100.0*Chance wins title100.0*Promoted100.0*Average seed
Morton 3 Peterhead 1 +32.0
+24.0
+0.4
Forfar Athletic 1 Ayr Utd 3 +28.0
+21.0
+0.4
Brechin 1 Stranraer 3 -4.7
-3.5
-0.2
Points
Chance Will Win Championship