I am trying to understand from examples using Lookup2 on this forum how to construct a lookup table to determine altitude from my MPX6115 pressure sensor.
Here iwhat I have so far:

1. I am reading the sensor with an 18F2423 which has a 12bit A/D. Not using oversampling.
2. The pressure where I live is roughly 14.46 PSI, elevation 440 ft.
3. I am reading an ADValue of about 3344 at present elevation.
4. I am aware of the MPX4115A calculator.
5. I have used an online calculator to convert elevation to PSI in order to get some numbers.

Now with all of this, where do I go from here to develop this table, or is there a better way to determine altitude?