How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Friday, 1/29100.0*Chance wins regular season title100.0*Average seed
Brown 59 Princeton 83 -0.3
-0.4
Yale 81 Penn 58 -0.1
+0.0
Dartmouth 60 Columbia 77 -0.1
If winner is:HomeAway
Saturday, 1/30100.0*Chance wins regular season title100.0*Average seed
Brown vs Penn+0.3-0.3
Harvard vs Columbia-0.1+0.0

What If

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

100100100100100100100100
If finish:Chance will finish regular season at seed
TWW-LChance wins regular season title12345678Count
1111-061.5%613710385,384
1010-121.22155231331,841
99-22.5228521703,048,871
88-30.004355480016,480,514
77-40.0005454270058,427,030
66-5No0084041110142,620,441
55-6No007354513244,536,460
44-7No0064252294,636,201
33-8No001387244,445,010
22-9No0298133,048,995
11-10No010042,775,487
00-11No1006,520,390
Total:0.0%001481424491,187,256,624
Games Above .500
RPI