Many factors influence the translation rates, including even the office where you do the translations. That means that for the price you pay to an intermediary who has an office in the center, where it is convenient for you to walk in from the street almost anytime and find someone there to serve you (sometimes the same day), there are a lot of costs. The rent of the office, the costs of electricity, telephones, internet, etc., and everything invested in that office: furniture, computers, printers, fax, copier, software licenses, all these are paid for.