How are these numbers calculated?

Big Games

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

Week of 10/7100.0*Chance in playoffs100.0*Average seed
Windsor 61 York 15 -1.7
-0.1
McMaster 43 Guelph 35 -1.6
-0.4
Queen’s 66 Toronto 1 +1.2
Week of 10/16100.0*Chance in playoffs100.0*Average seed
Guelph 41 Windsor 14 In
+0.5
Laurier 44 Queen’s 23 +10.8
+0.1
Toronto 21 McMaster 40 +0.6
Week of 10/23100.0*Chance in playoffs100.0*Average seed
Windsor 16 Laurier 56 -0.3
Ottawa 30 Guelph 7 -0.2
Games Above .500
Chance Will Make Playoffs