I would be grateful for any guidance please. My student dd has done some translation work for a European fashion company - she basically translated their catalogue of clothes into an appealing English language website . Sales have gone up ! The company (very small) now want her to do further work, on an ad hoc basis. She has no idea what to charge - I think they gave her 200 euros for the previous work (which took about 20 hrs, it was complicated and she did the work very well).
Any thoughts on a reasonable rate to request? Is such work usually calculated on a cost per word or page basis? She would welcome the work but does not want to be exploited or charge too much ! ( and it needs to be properly invoiced etc for tax reasons I assume )...