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
New Orleans vs Atlanta+0.1-0.1
If winner is:HomeAway
Thursday100.0*Chance in playoffs100.0*Average seed
Miami vs Dallas+3.7-3.7
+0.4-0.4
Toronto vs Portland-0.5+0.5
Oklahoma City vs Brooklyn+0.4-0.4

What If

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

100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415Count
57-81In100218*
5651-25In991230
5550-26In1000484
5449-27In991858
5348-28In95501,500
5247-29In93702,426
5146-30In8514103,909
5045-31In77212005,604
4944-32In613360107,739
4843-33In44401311010,376
4742-34In25412455013,396
4641-35In113232121120015,942
4540-36100.0%316302121710018,125
4439-3799.815182526176100019,557
4338-3898.0016202126177200020,297
4237-3987.9011292126209310019,621
4136-4060.40052819262312410018,259
4035-4126.90201617262415610015,940
3934-427.310151426271871013,450
3833-431.10014132629206110,369
3732-440.100141327321947,947
3631-450.00015173333125,465
3530-460.0000162341293,754
3429-47Out031341442,359
3328-48Out0630631,544
3227-49Out022177834
3126-50Out11088439
3025-51Out0793256
2924-52Out49689
2823-53Out29849
5-27Out10044*
Total:69.6%13119987766554433221,080

* 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
New Orleans vs Atlanta-0.1+0.1
Washington vs Dallas+0.1-0.1
If winner is:HomeAway
Thursday100.0*Lottery seed
Miami vs Dallas-0.8+0.8
Toronto vs Portland+0.1-0.1
Oklahoma City vs Brooklyn-0.1+0.1

What If

100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L123456789101112131415161718192021222324252627282930
57-81100
5651-25991
5550-269820
5449-279721
5348-2891450
5247-2984870
5146-30711514010
5045-315621201200
4944-32352530360010
4843-331628337130110
4742-34521251622250400
4641-351101121248110111200
4540-3603214131718317370100
4439-371053151691511162601000
4338-3801067135161610162702000
4237-390121009516151117393100
4136-400005208316131319136200
4035-4100201062151019201472100
3934-420101051513212217104100
3833-43001001512202420114100
3732-440000251320252011310
3631-45001271725261650
3530-460015132730195
3429-47001414323315
3328-4806184233
3227-49093556
3126-5052372
3025-51011484
2924-52892
2823-53496
5-27100
Total:756554544443434333333222222211