Accounting Fees

Got a question what will be the average rate in the U.S. to charge on a monthly basis to a person or a company for the following services: ? Complete Accounting Cycle? Financial Statements? Income Tax Report? Other Tax Reports? Bank Conciliations? Figures Certification by CPA? Fully bilingual financial support (Spanish/English) I ask you this, because I have to present a proposal for a customer from the US that I do business with as freelance here in Panama, Central America, and I do not want to show a price below US standards if you know what I mean, some times, customers from other countries come to Panama willing to pay far less for services than what they're used in their own countries, I do not want this to be the case, as I'm planning to charge accordingly or a bit more (due to the bilingual nature of my services) to what they pay back in the US. This people got money, they are Real State investors with several properties and assets worth hundres of millions in the US and in Panama they're developing 4 Real State Projects that will eventually represent lots of income as well.