Need help with coin business accounting procedures

I have been buying and selling higher end coins in holders and doing my
accounting was pretty easy. Now that I have been branching out
doing trades, bulk purchases, and buying collections accounting is no longer simple.
The time to assign my cost to each item is impractical and an accounting nightmare.
I would really love to find a easy systematic way of dealing with this nightmare.
Is there a good book or accounting software system to deal with this ?
I am a computer programmer by trade and would be willing to build
a system if that makes sense.
Gerard
http://www.ebay.com/sch/Coins-...=10&_ssn=infoflexsales
Plenty of high dollar transactions :
jdimmick, commoncents05, Smittys, guitarwes
Plenty of high dollar transactions :
jdimmick, commoncents05, Smittys, guitarwes
0
Comments
Gerard Butler by chance?
Nah. He doesn;t program computers.
The name is LEE!
Excel would probably be your best bet (being a computer programmer I'm sure you've thought of this already). Just a simple columns of "item description, what you paid, what you sold/traded it for, when you bought/sold it, profit/loss on the individual item."
It does take lots of time, especially if you're doing lots of transactions with lots of individual items.
Too many positive BST transactions with too many members to list.
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work it.