Trying to figure out easiest formula to use in iOS Numbers

Question

To all you smart function Guru's. Looking for help to see if this can be done.
All help will be greatly appreciated here. Using Numbers on the iPad.
My situation. In the "Pick Up" box I select a location from a drop down, it then puts in a numerical figure in the "HOE 1" box from the HOE Chart. (Easy part).
Now once I "Pick Up" I then select a "Drop Off" location (it will only be a few different locations) and want that to pick a numerical figure, depending on "Pick Up" and "Drop Off" location selected, from the HOE Chart and input the numerical value into HOE 2 box. This is the problem. I want it to look also at the "Pick Up" location to select the correct altitude for the "drop off". i.e. I depart my standard location and I pick up from  Citrus Mem Hosp and I am going to Shands (as in  the picture) I need it to select the Altitude from the HOE Chart that corresponds to the Drop Off leg (HOE 2).
Pick Up Location selects from B Column (HOE Chart) HOE 1 altitude is picked from D column (HOE Chart).
Drop Off HOE 2 would be picked from E, F or G Columns (F & G not completed yet) of the HOE Chart.
I am not a novice in using Excel or charts but am a novice when it comes to complex functions. Please spell out some of the function with your reply.
Again ALL Help is greatly appreciated.

Answer 1

Wayne,
Thanks for helping and I think you are on the right track. The formula works in iOS Numbers with a little tweaking with 1 problem. Why Apple can have the programs work the same is beyond me but hey, I am a Windows guy so I won't complain.
The problem is that, and its probably my fault in the way I asked. I need the Drop Off (Table "Location" B2) to select from the HOE Chart either Columns E, F, or G (possibly an H in the future) of the Pickup Locations ROW (Highlighted in Blue for this example)
example.
I leave my location (always the same) and go to Pickup Location = Citrus Mem Hosp. HOE 1 gives me altitude from highlighted Row + Column D (HOE Chart).
Now the complex part (to me)
I depart Citrus Mem Hosp (pick up location) and I am going to Shands (Column E (HOE Chart)) so I select that from my drop down list in "Drop Off" location(location table), I need HOE 2 (hoe table) box to give me the Altitude for Row (Citrus Mem Hosp) + Column E (Shands Column). If I select Orlando or Tampa Columns I would need it to select that altitude for the same Row.
I hope this explains it a little better and the pictures outline it a little more.
Your equation selected (once I input the correct Hospital name in my Drop off Location list) the altitude as if I was going from that location to GNV (Shands).
I hope this can be done as it would make our lives a lot easier and help us get in the air quicker.
Again Thank you for your help and time.
P.S. We just moved to Florida from Corpus Christi. Been up in your parts quite a few times.