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*Average seed
Brown 34 Penn 31 +18.2
-0.1
+0.4
Princeton 35 Cornell 9 -0.4
-0.0
If winner is:HomeAway
Week of 11/5100.0*Chance wins regular season title100.0*First Division100.0*Average seed
Yale vs Brown+0.4-14.0
+0.5-21.6
+0.0-1.0
Princeton vs Dartmouth-0.2+9.3
+0.1-3.0
-0.0+0.2
Cornell vs Penn+4.5-0.1
-1.8+0.0
+0.3-0.0
Harvard vs Columbia-0.0+1.8
-0.0+0.2

What If

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

100100100100100100100100
If finish:FirstChance will finish regular season at seedLast
TWW-LChance wins regular season titleDivision12345678PlaceCount
63-063.4%Yes6337No7,999,572
52-10.4Yes0315316No16,177,328
41-2No99.0%0148510No8,386,137
30-3No35.303552120No209,971
Total:15.7%99.3%16243030100No32,773,008
Games Above .500
RPI