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
Ottawa 44 Laurier 21 -1.7
-0.7
Windsor 61 York 15 -0.5
McMaster 43 Guelph 35 +0.2
-0.1
Week of 10/16100.0*Chance in playoffs100.0*Average seed
Laurier 44 Queen’s 23 In
+0.6
Guelph 41 Windsor 14 -4.4
Toronto 21 McMaster 40 +0.2
Week of 10/23100.0*Chance in playoffs100.0*Average seed
Windsor 16 Laurier 56 In
+1.0
Western 35 Toronto 23 -3.2
-0.0
Queen’s 44 York 7 +0.4
Ottawa 30 Guelph 7 +0.2
Games Above .500
Chance Will Make Playoffs