How are these numbers calculated?

Big Games

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

If winner is:HomeDrawAway
Week of 10/6100.0*Chance wins title100.0*Average seed
Sounders vs WhitecapsYes-30.4-66.1
+0.3-0.3-0.8
Whitecaps vs Timbers-6.7+16.7+2.7
-0.0+0.1-0.0

What If

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

100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins title123Count
11-13Yes10013,878,173,190*
101-0-195.1%95515,385,032,990
90-2-033.233672,837,834,403
80-1-120.721797,538,264,236
70-0-2No67333,207,061,081
Total:72.4%7225242,846,365,900

* Row combines multiple less frequent records.

Points
Chance Will Win Championship