I have figured out how to make a field show or hide based on binary statement (on or off via checkbox) or on any sort of input regardless of what the input is.

What I am trying to get happen is when specific options from a multi-select field are selected, specific fields show themselves corresponding with them.  I thought maybe having a list somewhere of all the options, and then trying to get it to search and compare the input with the list, but I don't know if that is viable or how to do it.

For a concrete example of what I am doing, is having a number field corresponding to a price pop up when certain inventory items are selected.  I don't want a long list of all possible items cluttering up the form, and leaving a whole bunch of cost fields blank just because one location doesn't have certain items.

I appreciate your time in reading this, and will be grateful for simple, clear instructions on how to do this if it is plausible.  Kindly remember in your response you are speaking with an amateur.