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
Dartmouth 13 Harvard 28 +6.4
+19.1
-1.0
+0.8
Princeton 35 Cornell 9 -2.7
+2.1
-0.2
Brown 34 Penn 31 +2.1
+0.5
If winner is:HomeAway
Week of 11/5100.0*Chance wins regular season title100.0*First Division100.0*Last Place100.0*Average seed
Harvard vs Columbia+8.6-8.6
+9.6-9.6
+0.5-0.5
Princeton vs Dartmouth-5.8+5.8
+2.2-2.2
-0.1+0.1
Yale vs Brown-1.6+1.6
+1.6-1.6
-0.1+0.1
Cornell vs Penn+1.6-1.6
-1.6+1.6
+0.1-0.1

What If

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

100100100100100100100100
If finish:FirstChance will finish regular season at seedLast
TWW-LChance wins regular season titleDivision12345678PlaceCount
63-068.8%Yes6931No1,368,168
52-114.7Yes1555283No4,096,189
41-2No90.2%63649100No4,093,635
30-3No25.22546263No1,366,344
Total:14.1%87.0%14272422930No10,924,336
Games Above .500
RPI