I know there is not one answer to this and there are a whole host of variables at play but I'm just looking for a ball park idea here.
I've recently started offering freelance workshops / consultation in an area I've been practising (employed) for 25 years. I have postgraduate qualifications, and various credits to my name which are fairly prestigious within the sector, and have done a few things like a keynote speech at an industry event, main interview in industry magazine.
I don't want to out myself as the specific area is quite niche but it's not a sector with huge amounts of money (eg corporate/ finance / law or anything). Think humanities / heritage type stuff.
I have been asked to visit an organisation and deliver a 1-day workshop with their staff of 15. The workshop is something I've already prepared (and deliver for individuals), so there's not that much extra planning.
What rough fee should I be asking for please? Bearing in mind when I run the workshop myself each individual will pay me a fee, so I make a decent amount. This organisation are asking me to go to them. It's a good connection so I don't want to quite too high a cost and put them off but at the same time don't want to feel resentful about the fee.
What rough amount could you expect to pay someone / charge for this type of thing? I would be travelling into London (2hrs).