Somehow, -3 to -1 floor don't exist because those floors mashup with 1 - 3 floor. Causing pressed those floor button will only go to 1-3 floor. Also, some negative floors like -60 floor won't go due to button doesn't work (even door not added to the elevator shaft.)
Building Stats:
Elevator Speed: 250
Elevator in Total: 5
Floors: -100, -90*, -80*, -70*, -60*, -50*, -40*, -30*, -20*, -10*, -3*, -2*, -1*, 0, 1, 2, 3, 10, 25, 50, 75, 100, 150, 200, 300, 399, 400
[* = not working floor]