Hi Pete .. what great news that you have potential outlets ! Brilliant !
I'm a long way from being a professional turner - but business is business at the end of the day, regardless of the commodity in question.
I guess you have to decide whether you want to actually generate a 'profit' or if you just want to recoup some costs involved in producing your work. -
If you want a 'profit' - then you first need to get to the true 'cost of sale', - what does it cost you to put something up for sale.
Several things there then need to be taken into consideration...
Raw Material Costs.
Manufacturing Costs ( your electricity, tooling, finishes, )
Transportation Costs ( both inwards and outwards )
etc.
Then decide on what you would consider as an acceptable %margin of profitability for yourself.
Then you have to add to the 'costs' side - the % comission that the outlet could potentially receive, and ***** ( with them probably ) what would be considered as a viable level of commission.
So lets say for example..
A pice of 'Raw' timber costs you £ 10
It costs you £ 5 all-told, to manufacture the finished piece,
It cost you £ 2 to go get it in the raw, and deliver it to the outlet
so far, the piece has cost £17.
Lets say then, that you decide on an acceptable margin of profit for yourself is set at 30% for you, and a 10% comission for the seller.
You then sell the piece for £17 divided by 0.6 to the final buyer, at £28.33, and everyone's happy.
Of course, there's some other things to factor in, such as the VAT, and if you intend to be 'legal' and declare the earnings to the HM Treasury ( :wink: ). - The VAT is a little minefield of its own, but not impossible... and of course if you intended to go this route, you then perhaps have to 'factor in' to the 'cost of sale', the costs of having an accountants services etc etc..
However, if you were only wanting to generate a bit of 'recouping a bit of pin-money to offset against the cost of a hobby',
then its perhaps a bit easier to decide on an acceptable rate for your selling agent, and infinitely easier to administer... as effectively he can set the selling price, based on the comission he wishes to achieve in £note terms.
It may be worth being mindful, that if you go down the 'pin-money' route, that your seller is most likely a 'legitimate trading outlet' with the proper 'books', P&L and Balance Sheets involved in running any business, and as such will be in the position that he will be declaring income generated from goods supplied potentially by yourself, and in doing so, can 'unwittingly implicate you' to 'official' bodies, such as the VAT Man, The Tax Man, etc etc... who are never shy in coming looking for their 'share' - thus almost forcing your hand into keeping books anyway.
Hope that maybe gives you a bit of food for thought....
As mentioned, as you know, I'm never going to be a pro turner, but the principals involved in trading with any outlets / customers are basically the same.
Best of luck with it all... sounds like a great opportunity !
8)