How are these numbers calculated?

Big Games

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

Week of 10/20100.0*Chance wins title100.0*Average seed
IFK Norrköping 2 Elfsborg 1 -18.5
-0.3
Mjällby 1 Häcken 2 -10.4
-0.1
Kalmar 1 Malmö 2 -3.1
-0.1
Malmö 3 Djurgården 1 -2.7
-0.1
IFK Göteborg 0 AIK 1 -0.8
Week of 10/27100.0*Chance wins title100.0*Average seed
Mjällby 2 Elfsborg 3 +25.0
+0.4
Malmö 1 Örebro 1 +12.9
+0.2
Häcken 1 Kalmar 2 +10.9
+0.3
Elfsborg 2 Gefle 0 +10.1
+0.3
Häcken 1 AIK 1 +8.1
+0.2
AIK 1 Syrianska 1 +1.7
+0.1
Week of 11/4100.0*Chance wins title100.0*Average seed
Elfsborg 1 Åtvidaberg 1 -15.4
-0.2
AIK 2 Malmö 0 Yes
+0.1
Points
Chance Will Win Championship