Pretty doubtful, as there is only one singular ff4kster dev, pinkpuff, who declared being finished working on the program quite a while ago.
That being said, I'm a bit confused as to which calculations you'd want a program to do for you... ?
I suppose not so much calculations as much as put in your percent to raise/lower a thing select the monsters/characters and it changes all the stats on all levels, a kind of one and done deal, rather than changing 100 things only to miss something. So rather than doing it each character for each level its an all at once deal.
Looking at doing it via AR/GG,raw,ect codes seems like you can lock def %, stats at a number of your choosing. Tho now that I think I tried to make a EXP null or low EXP after each fight type of code for Guardians crusade...mmm seems I could do that with FF2 SNES , that way I can explore without gaining levels to fast and turn it off to grind where needed but that kinda screws up getting new spells.
This seems the most promising http://ff4.paladinet.com/chronicle/files/ff4cheats03.txt
this part here
Defense | 7E106A | 7E10EA | 7E102A | 7E112A | 7E10AA
Defense % | 7E1069 | 7E10E9 | 7E1029 | 7E1129 | 7E10A9
Attack % | 7E105C | 7E10DC | 7E101C | 7E111C | 7E109C
M. Def. | 7E1064 | 7E10E4 | 7E1024 | 7E1124 | 7E10A4
M. Def % | 7E1063 | 7E10E3 | 7E1023 | 7E1123 | 7E10A3
Defense x | 7E1068 | 7E10E8 | 7E1028 | 7E1128 | 7E10A8
Attack x | 7E105B | 7E10DB | 7E101B | 7E111B | 7E109B
M. Def x | 7E1062 | 7E10E2 | 7E1022 | 7E1122 | 7E10A2
If I am reading it right I could lower the Defense and M.Def I would have to fiddle with it and see what works but thats as simple as I can find for def/Mdef reduction I think.