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 in playoffs100.0*Average seed
Eugene 42 Van Island 49 -10.8
-0.1
Fort McMurray 44 North Dakota 38 -10.6
-0.2
Kansas City 37 Seattle 42 +3.4
Portland 27 Texas 56 +1.2
Vicenza 40 Corpus Christi 36 +0.4
+0.0
Week of 10/26100.0*Chance in playoffs100.0*Average seed
Van Island 32 Kansas City 24 -19.2
-0.2
Iowa 37 North Dakota 34 -8.9
-0.1
Seattle 69 Tucson 73 -6.0
-0.1
Corpus Christi 45 Los Angeles 60 +1.7
Week of 11/2100.0*Chance in playoffs100.0*Average seed
Texas 36 North Dakota 30 Out
-0.3
Eugene 43 Corpus Christi 28 +5.7
+0.1
Games Above .500
Chance Will Make Playoffs

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Week of 10/20100.0*Lottery seed
Fort McMurray 44 North Dakota 38 +0.5
Eugene 42 Van Island 49 +0.2
Kansas City 37 Seattle 42 -0.1
Chicago 31 Berlin 27 +0.0
New York 19 Tampa Bay 21 -0.0
Portland 27 Texas 56 -0.0
Week of 10/26100.0*Lottery seed
Van Island 32 Kansas City 24 +0.3
Iowa 37 North Dakota 34 +0.3
Wisconsin 49 Chicago 37 -0.2
Seattle 69 Tucson 73 +0.1
Corpus Christi 45 Los Angeles 60 -0.0
Week of 11/2100.0*Lottery seed
Texas 36 North Dakota 30 +0.5
Chicago 52 Detroit 34 +0.3
Eugene 43 Corpus Christi 28 -0.1