How are these numbers calculated?

Big Games

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

Tuesday100.0*Chance in playoffs100.0*Average seed
Spurs 99 Raptors 82 -4.7
-0.5
Mavericks 134 Raptors 115 -4.3
-0.4
Raptors 108 76ers 99 +2.9
+0.2
Raptors 111 Jazz 104 +2.3
+0.2
Raptors 122 Heat 108 +2.0
+0.2
Cavaliers 101 Jazz 92 -0.9
-0.1
Magic 108 Knicks 112 +0.8
Bulls 106 76ers 119 -0.8
+0.1
Kings 112 76ers 125 -0.8
Hornets 114 Warriors 107 -0.7
-0.1
Pacers 112 Hornets 94 +0.7
+0.1
Magic 102 Pacers 96 -0.5
Pistons 79 Cavaliers 73 +0.4
+0.0
Cavaliers 74 Magic 87 +0.1
Bulls 121 Pacers 115 -0.0
Mavericks 118 Bulls 126 -0.1
Nets 99 Bulls 104 -0.1
Grizzlies 123 Bulls 85 +0.0
Saturday100.0*Chance in playoffs100.0*Average seed
Hornets 108 Raptors 98 -18.1
-0.6
Raptors 107 Pistons 102 +16.1
+0.6
Suns 116 Raptors 99 -8.7
-0.3
Hawks 113 Raptors 104 -7.5
-0.3
76ers 100 Thunder 88 -4.9
-0.2
Trailblazers 133 Hornets 131 +4.9
+0.1
Hornets 116 Nuggets 109 -4.8
-0.1
Magic 76 Jazz 81 +4.1
+0.2
76ers 112 Heat 88 -3.3
-0.1
Hornets 122 Lakers 90 -3.3
-0.1
Hornets 99 Cavaliers 85 -2.9
Magic 130 Nets 109 -2.9
-0.1
Magic 114 Bucks 95 -2.7
-0.1
76ers 98 Cavaliers 88 -2.2
Bulls 108 Magic 103 +2.1
+0.1
Cavaliers 91 76ers 120 -2.1
Celtics 94 Cavaliers 89 +0.3
+0.0
Games Above .500
Chance Will Make Playoffs

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

TuesdayNone
Saturday100.0*Lottery seed
Raptors 107 Pistons 102 -0.9
Hornets 108 Raptors 98 +0.9
Suns 116 Raptors 99 +0.5
Hawks 113 Raptors 104 +0.4
Magic 76 Jazz 81 -0.2
76ers 100 Thunder 88 +0.2
Magic 130 Nets 109 +0.2
Magic 114 Bucks 95 +0.2
Trailblazers 133 Hornets 131 -0.2
Bulls 108 Magic 103 -0.1
Hornets 116 Nuggets 109 +0.1
76ers 112 Heat 88 +0.1
Celtics 94 Cavaliers 89 -0.1
Hornets 122 Lakers 90 +0.1