How do I calculate to know how much I am going to charge the customer monthly on my cleaning services

Hi, shen21!

Cleaning of what, please? It would be helpful to have more particulars as to what this is involving. Once we know what's being cleaned, how long it will take in hours/days and the kind of equipment and supplies that need to be used as well as the entity that will be furnishing them as well as at least an approximate idea as to the geographic location, then it will be much easier for us to address your question.

Thanks!