How are these numbers calculated?

Big Games

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

Week of 4/19100.0*Chance in playoffs100.0*Average seed
Hurricanes 22 Force 20 -0.5
+0.0
Reds 19 Brumbies 19 +0.4
Crusaders 24 Highlanders 8 -0.4
Kings 0 Bulls 34 -0.3
+0.0
Waratahs 25 Chiefs 20 -0.1
If winner is:HomeDrawAway
Week of 4/26100.0*Chance in playoffs100.0*Average seed
Crusaders vs Rebels-4.2-1.5+4.3
-0.8-0.1+0.9
Brumbies vs Force-0.4-0.2+0.5
+0.1+0.0-0.1
Cheetahs vs Kings-0.4+0.2+0.4
Hurricanes vs Stormers-0.1+0.4+0.0
Bulls vs Waratahs+0.0+0.3-0.1
Reds vs Blues-0.2+0.1+0.2

What If

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

100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112131415Count
408-0-0100.0%3237722200880,855
387-1-099.9724123817200553,820
367-0-198.6110202531111006,663,298
6-2-096.90512233918300161,424
346-1-176.0016526371940003,884,464
5-3-074.715526382040027,168
326-0-229.40405213526910023,314,041
5-2-119.6010316343113200970,509
4-4-015.210112323316402,683
305-1-22.1000021230341840011,654,494
4-3-12.00021230351840134,500
3-5-00.61832351941181
285-0-30.10001724382560046,632,072
4-2-20.0000052038298002,427,715
3-4-10.0000418373190011,353
2-6-0Out142929297
264-1-30.00000523422630019,418,304
3-3-20.0000523422630269,705
2-5-1Out052146244543
244-0-40.0000042547202058,299,752
3-2-3Out0004234922303,235,200
2-4-2Out03215023317,151
1-6-1Out23591822
223-1-4Out0011047367019,417,223
2-3-3Out0110473670269,451
1-5-2Out1849367546
203-0-5Out001234926146,633,132
2-2-4Out0122492712,429,846
1-4-3Out01224927111,226
0-6-2Out2957147
182-1-5Out00134538411,651,855
1-3-4Out01345383134,153
0-5-3Out1444402201
162-0-6Out0327591123,319,309
1-2-5Out03265912970,713
0-4-4Out32758132,820
141-1-6Out011657263,885,160
0-3-5Out116572527,017
121-0-7Out0552436,659,863
0-2-6Out045145161,692
100-1-7Out023366555,300
80-0-8Out002179881,705
Total:6.2%00111245610132019143295,570,480
Games Above .500
Chance Will Make Playoffs