How are these numbers calculated?

Big Games

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

Week of 10/11100.0*Chance in playoffs100.0*Average seed
Houston 2 Kansas City 1 -5.9
-0.1
Week of 10/15100.0*Chance in playoffs100.0*Average seed
Colorado 1 Salt Lake 0 -22.9
-0.5
Seattle 4 Dallas 0 +7.9
+0.1
Vancouver 1 San Jose 1 -1.5
-0.1
Kansas City 0 Houston 0 -0.9
Week of 10/22100.0*Chance in playoffs100.0*Average seed
Salt Lake 2 Kansas City 1 +13.8
+0.5
Dallas 5 Los Angeles 1 Out
-0.2
San Jose 3 Minnesota 2 Out
-0.2
Points
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 10/11100.0*Lottery seed
Houston 2 Kansas City 1 +0.2
Portland 4 DC United 0 +0.0
Week of 10/15100.0*Lottery seed
Colorado 1 Salt Lake 0 +1.0
New England 2 NYCFC 1 +0.1
Seattle 4 Dallas 0 -0.1
Vancouver 1 San Jose 1 +0.1
Toronto 1 Montreal 0 -0.1
Chicago 3 Philadelphia 2 -0.1
Kansas City 0 Houston 0 +0.1
Orlando 0 Columbus 1 -0.1
Week of 10/22100.0*Lottery seed
Salt Lake 2 Kansas City 1 -0.9
San Jose 3 Minnesota 2 +0.3
Dallas 5 Los Angeles 1 +0.2
Montreal 2 New England 3 +0.2