How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

If winner is:HomeAway
Wednesday100.0*Chance in playoffs100.0*Average seed
Washington vs Dallas+4.1-4.1
+0.4-0.4
If winner is:HomeAway
Thursday100.0*Chance in playoffs100.0*Average seed
Indiana vs Washington-4.5+4.5
-0.4+0.4
Boston vs Memphis-0.5+0.5

What If

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

100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415Count
56-80In100130*
5553-25In982128
5452-26In9720262
5351-27In9640497
5250-28In9280850
5149-29In8613001,501
5048-30In74232002,433
4947-31In61326113,954
4846-32In4240141205,766
4745-33In24412446008,043
4644-34In10303211133010,562
4543-35In31629202282013,224
4442-3699.8%1516232819710015,712
4341-3797.5015172126197200018,105
4240-3886.900198212721930019,509
4139-3960.104281927231341020,008
4038-4026.1201617262515610019,288
3937-417.010151525281771017,951
3836-421.00014132530206115,896
3735-430.00001414273219413,337
3634-440.000151633331210,453
3533-45Out0172441287,864
3432-46Out0021339455,715
3331-47Out00632624,053
3230-48Out0222762,524
3129-49Out113871,480
3028-50Out793875
2927-51Out496480
2826-52Out298228
2-27Out100252*
Total:52.5%666677777777776221,080

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs

Lottery

Ye of little faith, already thinking about next year. Here are the big games and what ifs for draft seeds.

Big Games

If winner is:HomeAway
Wednesday100.0*Lottery seed
Washington vs Dallas-0.9+0.9
If winner is:HomeAway
Thursday100.0*Lottery seed
Indiana vs Washington+0.9-0.9

What If

100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L123456789101112131415161718192021222324252627282930
57-80100
5654-24982
5553-259812
5452-2695220
5351-2791540
5250-2884880
5149-29721413000
5048-305420231200
4947-3135273026011
4846-321626337140120
4745-33420261623246000
4644-34110102025811012130
4543-350321413161721938020
4442-36105314158171117270100
4341-3701056115161710172702000
4240-38001180851616111929310
4139-39004208316131419145200
4038-40020106215111921146200
3937-41010105151421221793100
3836-4200100261221231911410
3735-43000000261321251910300
3634-44000271727261551
3533-45015142729185
3432-46001415293515
3331-47015213934
3230-480193753
3129-49032472
3028-5021584
2927-510990
2826-52595
2725-53199
2-26100
Total:333333334343434344433333333333