How are these numbers calculated?

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Sunday100.0*Lottery seed
Raptors 84 Pacers 129 -0.5
Pacers 90 Wizards 75 -0.3
Clippers 105 Pacers 96 +0.3
Pacers 89 Magic 111 +0.3
Bulls 91 Mavericks 94 +0.1
Celtics 104 Nets 116 +0.1
Mavericks 119 Rockets 92 +0.1
Thunder 120 Magic 107 +0.1
Kings 113 Lakers 105 +0.1
Heat 141 Bulls 127 +0.1
Mavericks 92 76ers 99 -0.0
Bucks 106 Nets 78 -0.0
Timberwolves 98 Mavericks 95 -0.0
Pistons 122 Nets 83 -0.0
Heat 115 Hawks 117 -0.0
Timberwolves 106 Kings 104 -0.0
Warriors 111 Kings 110 -0.0
If winner is:HomeAway
Tuesday100.0*Lottery seed
Cavaliers vs Pacers+0.4-0.6
Cavaliers vs Pacers+0.4-0.6
Raptors vs Pacers+0.3-0.7
Pacers vs Cavaliers-0.3+0.5
Nets vs Hornets+0.1-0.1
Nets vs Wizards+0.1-0.1
Bucks vs Mavericks-0.0+0.1
Mavericks vs Grizzlies+0.1-0.0
Knicks vs Mavericks-0.0+0.1
Kings vs Pistons+0.1-0.1
Bulls vs Nets-0.0+0.1
Thunder vs Rockets+0.1-0.1
Knicks vs Nets-0.0+0.1
Jazz vs Thunder-0.0+0.1
Clippers vs Kings-0.0+0.1
Heat vs Rockets+0.1-0.1
Heat vs 76ers+0.1-0.0
76ers vs Heat-0.0+0.1
Rockets vs Heat-0.0+0.1
Heat vs Warriors+0.1-0.0
Suns vs Trailblazers-0.0+0.1

What If

100100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L1234567891011121314151617181920212223242526272829
359-03513610
348-17414290
337-201034391430
326-304253625810
315-4021331341730
304-50172741232
293-6005305212
282-7085437
271-813070
260-9991
Total:000135814223116
Games Above .500
Chance Will Make Playoffs