Theres a difference between a wholesale price, ie someone buying say
10 of a design you have made, and some one asking for a trade price
for a one off.
Only you can decide which applies in your studio. You should know
what it costs to make an item, advertise it and sell it., If however
its an item thats been in your stock for a long time you might want
to sell it trade? to recover the materials and effort invested in it,
and put the money into something that will sell much quicker. If you
work to comission then I dont see how a wholesale price is relevant.
you price a comission up front to the customer, and that should be
the end of it.
If they then after you made it, ask for a wholesale price, id tell
them the agreement is as made or is null and void.
We all get the customer who will try for a discount afer a price has
been agreed. Id put the hammer into it in front of him/her, chuck it
in th e scrap bin and show them the door.