What is the minimum amount to make an interpol...

In regards of submitting a complaint to The Interpol, you have to note that an ordinary person cannot file a complaint directly with Interpol. Rather, a complaint must be filed to the Public Prosecution and the UAE judiciary, and after obtaining a final ruling, a request can be submitted to issue an arrest warrant against the accused via Interpol. Use the following link:
UAE Government Portal   
As for the cost, it is determined when submitting a request according to the class of offense and according to the country where it is prosecuted