The answer is that it all depends if you are relying on this for your only income, or if it is just supplementing your main income. Also, what your costs are in producing the items for sale, the cost of materials, insurance, transport costs, etc.
Many out there forget to take into account all their true costs, and think turnover is profit, which it isn’t.
So there’s no magic answer. Some would be happy with around £75 -£150 , others would need several hundred pounds or more to make it worthwhile.
Also, there’s the social side to selling. I do it as much for the contact with customers and traders as well as the sales. Some days have poor sales and then you have to assess whether it’s worth the effort of getting out of bed to go to the site. Other days can be very good and you meet contacts, which might result in sales months later.
Just to put it into perspective, professional people with their own company would target around 2.5x - 3.5 x salary costs to make it worthwhile staying in business, per person. That means if you employed someone and they weren’t earning at least 2.5 x their salary , then they won’t be economic for very long to cover insurances, overheads, on-costs, and a profit element.
However, when you are working for yourself, you may decide to work extra hours for little or no remuneration, - it’s your time after all. But if you do that, be honest with yourself, and calculate the true hourly-rate by adding up all your time you spend making , marketing, and selling your product. Many people end up quite shocked, at how little per hour they are earning.
