How are these numbers calculated?

Big Games

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

Week of 10/29100.0*Chance wins regular season title100.0*First Division100.0*Last Place100.0*Average seed
Brown 34 Penn 31 -1.5
+6.1
-0.3
Princeton 35 Cornell 9 No
-1.6
+0.5
-0.1
Dartmouth 13 Harvard 28 -5.2
-0.2
If winner is:HomeAway
Week of 11/5100.0*Chance wins regular season title100.0*First Division100.0*Last Place100.0*Average seed
Cornell vs Penn+21.6-0.5
-13.9+0.4
+1.0-0.0
Harvard vs Columbia-0.1+2.9
-0.2+9.4
+0.0-0.2
Yale vs Brown-0.0+1.8
-0.1+4.6
+0.0-0.3
Princeton vs Dartmouth-0.0+1.7
+0.0-0.2

What If

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

100100100100100100100100
If finish:FirstChance will finish regular season at seedLast
TWW-LChance wins regular season titleDivision12345678PlaceCount
43-0No64.7%01352350No209,923
32-1No1.00185140No8,387,622
21-2NoNo16533100.4%16,176,287
10-3NoNo376363.47,999,176
Total:No0.7%0013030241615.7%32,773,008
Games Above .500
RPI