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 +5.9
+0.6
Yale 81 Penn 58 -0.9
Dartmouth 60 Columbia 77 -0.7
Harvard 65 Cornell 77 +0.4
If winner is:HomeAway
Saturday, 1/30100.0*Chance wins regular season title100.0*Average seed
Yale vs Princeton-8.8+8.8
-0.5+0.5
Harvard vs Columbia+1.7-1.7
Brown vs Penn+0.2-0.2

What If

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

100100100100100100100100
If finish:Chance will finish regular season at seed
TWW-LChance wins regular season title12345678Count
1412-0Yes100216,164
1311-1100.0%10001,139,249
1210-299.099106,262,541
119-392.4928020,855,221
108-469.269292046,918,100
97-528.32852191075,057,742
86-62.6325472330087,555,426
75-70.00113403691075,059,899
64-8No005274521246,918,860
53-9No0220512720,861,618
42-10No0228706,262,691
31-11No07931,139,057
20-12No0199216,040
Total:21.3%2120171411863388,462,608
Games Above .500
RPI