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*First Division100.0*Last Place100.0*Average seed
Brown 34 Penn 31 +5.9
-12.4
+0.5
Princeton 35 Cornell 9 +0.8
-2.1
+0.1
Dartmouth 13 Harvard 28 -0.4
-1.3
If winner is:HomeAway
Week of 11/5100.0*First Division100.0*Last Place100.0*Average seed
Yale vs Brown-11.7+11.7
+9.5-9.5
-0.6+0.6
Harvard vs Columbia-2.0+2.0
-5.2+5.2
+0.1-0.1
Cornell vs Penn+0.6-0.6
+3.0-3.0
-0.1+0.1
Princeton vs Dartmouth+0.6-0.6
-1.6+1.6
+0.1-0.1

What If

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

100100100100100100100100
If finish:FirstChance will finish regular season at seedLast
TWW-LChance wins regular season titleDivision12345678PlaceCount
43-0No77.4%42945211No1,366,206
32-1No10.401045396No4,096,756
21-2NoNo330511616.4%4,094,501
10-3NoNo198181.21,366,873
Total:No13.6%0492126241616.3%10,924,336
Games Above .500
RPI