How are these numbers calculated?

Big Games

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

Week of 9/26100.0*Chance in playoffs100.0*Bye to semi-final100.0*Average seed
Guelph 48 Ottawa 26 +0.2
+10.4
+0.3
Toronto 18 Queen's 37 +0.1
-1.5
Laurier 18 Windsor 22 -0.1
McMaster 67 York 10 -0.2
Western 70 Carleton 14 +2.6
If winner is:HomeAway
Week of 10/2100.0*Chance in playoffs100.0*Bye to semi-final100.0*Average seed
Queen's vs Guelph-0.0In
-20.4+10.7
-0.5+0.3
Ottawa vs Carleton-0.0In
+3.3-3.7
+0.1-0.1
York vs TorontoIn-0.0
McMaster vs Windsor-0.2+1.1

What If

Chances based on how well the Guelph finish out the regular season.   Explain

100100100100100100100100100100100
If finish:Chance inBye toChance will finish regular season at seed
TPW-Lplayoffssemi-final1234567891011Count
163-0InYes574322,715,841
142-1InYes267430,371,483
121-2In35.8%2334319211,514,030
100-3100.0%3.50310344390974,884
Total:100.0%87.3%32558410065,576,238
Games Above .500
Chance Will Make Playoffs