I was editing an inn price for my hack this evening, and I noticed that my changes definitely did not fit the formula suggested by Yousei's FF4 data for event code DCxx (Inn: costing 50 * 2^xx). I started getting some wacky numbers after a value of 08, so I jotted them down, converted them to hex, reversed the bytes, and did a search for that data. It turns out that there's actually a GP cost table located from 06C83-06C94 (in a FF2us headered ROM). There's only 9 entries; after that is ASM code, which is why the values are so weird. Here's an example of the first 16:
## GP Value
-- --------
00 50
01 100
02 200
03 400
04 500
05 600
06 700
07 300
08 1200
09 12453
0A 63629
0B 42248
0C 36145
0D 2297
0E 12965
0F 64141
I have a list of all possible values for xx, if anyone wants it. 9 entries is actually fine, but in case someone wants to go crazy with Inns...
We have EVEN MORE themes now, but some old ones are gone...