How are these numbers calculated?

Big Games

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

Week of 1/10100.0*Chance in playoffs100.0*Top seed100.0*Average seed
Kitchener Red 2 Burlington Red 0 In
+25.5
+0.5
Hamilton Blue 2 Kitchener Red 4 +18.5
+0.3
Week of 1/17100.0*Chance in playoffs100.0*Top seed100.0*Average seed
Waterloo 0 Kitchener Red 2 +23.8
+0.2
Kitchener Red 1 Cambridge 0 +20.1
+0.3
Waterloo 2 Burlington Red 4 -19.0
-0.2
Hamilton White 8 St. Catharines 4 -1.7
-0.1
Week of 1/24None
Games Above .500
Chance Will Make Playoffs