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
Reds 19 Brumbies 19 +3.8
+0.2
Kings 0 Bulls 34 -1.0
-0.0
Hurricanes 22 Force 20 -0.9
-0.0
Crusaders 24 Highlanders 8 -0.8
-0.0
Sharks 6 Cheetahs 12 -0.3
Waratahs 25 Chiefs 20 *-0.1
+0.0
If winner is:HomeDrawAway
Week of 4/26100.0*Chance in playoffs100.0*Average seed
Reds vs Blues+15.0+2.2-10.2
+1.0+0.0-0.7
Crusaders vs Rebels-0.7+1.6+2.7
-0.0+0.1+0.1
Cheetahs vs Kings-0.8+0.1+1.8
-0.0+0.0+0.1
Brumbies vs Force-0.3+0.5+1.0
-0.1+0.2+0.3
Bulls vs Waratahs-0.4+0.2+0.7
Hurricanes vs Stormers+0.5-0.2-0.4
Chiefs vs Sharks+0.4-0.1-0.4

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

What If

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

100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112131415Count
547-0-0In91278,206,591
526-1-0In72502304,499,700
506-0-1In5118030051,595,463
5-2-0In491603501,067,928
485-1-1In24202531024,226,756
4-3-0In191726110139,128
465-0-2100.0%723655800136,098,122
4-2-1100.06206608004,701,607
3-4-0In5186619011,041
444-1-2100.0199552520052,307,843
3-3-1100.01665728200482,827
2-5-0In05660262520
424-0-398.2039264416200191,821,241
3-2-297.90272645172007,982,045
2-4-197.40262446192027,725
1-6-0In2550254
403-1-377.50046293819300057,962,090
2-3-277.2026303919300604,157
1-5-180.402635381720799
383-0-439.70208293719400156,054,630
2-2-335.401072738225006,518,634
1-4-233.401062638235022,656
0-6-122.2223322229
362-1-46.00000522392660034,752,305
1-3-35.7000522382770323,612
0-5-25.00523392571343
342-0-50.80000172740223073,278,485
1-2-40.50005234126502,565,524
0-4-30.4005214128505,856
321-1-50.000052645231010,697,816
0-3-40.000042545251062,633
301-0-60.0000112424230018,365,308
0-2-50.000183948400387,342
280-1-6Out01176317101,316,917
260-0-7Out0075830402,031,723
Total:69.8%674231712108642000848,119,380
Games Above .500
Chance Will Make Playoffs