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
Dartmouth 60 Columbia 77 -5.1
-0.6
Yale 81 Penn 58 -0.6
Brown 59 Princeton 83 -0.5
Harvard 65 Cornell 77 +0.5
If winner is:HomeAway
Saturday, 1/30100.0*Chance wins regular season title100.0*Average seed
Dartmouth vs Cornell+2.5-2.5
+0.6-0.6
Harvard vs Columbia+0.5-0.5
Yale vs Princeton-0.2+0.2
Brown vs Penn+0.1-0.1

What If

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

100100100100100100100100
If finish:Chance will finish regular season at seed
TWW-LChance wins regular season title12345678Count
1211-099.2%991310,973
1110-192.693702,090,028
109-268.468292010,429,924
98-326.22650222031,286,395
87-42.1222452740062,557,044
76-50.001113838121087,550,789
65-6No004264522287,561,436
54-7No0220512762,558,408
43-8No02296931,276,307
32-9No079310,443,880
21-10No01992,086,155
10-11No0100311,269
Total:4.9%58121415161614388,462,608
Games Above .500
RPI