Mira Financial Advisors provides accounting and finance assistance to customers in the retail business. Mira has four professionals on staff, plus an office with six clerical staff. Total compensation, including benefits, for the professional staff runs about $753,000 per year, and it normally has about 8300 billable hours per year. The professional staff keep detailed time sheets organized by client number. The total office and administrative costs for the year are $570,000.

Mira allocates office and administrative costs to clients monthly, using a predetermined overhead allocation rate based on billable hours. During July, Mira's professionals spent 36 hours on their client, Riley Sales. Mira adds a 25% markup on its costs to calculate the amount billed to the customer. How much should the company charge Riley Sales for the month of July?

Please show the calculations too :)