A small publishing company is releasing a new book. The production costs will include a one-time fixed cost for editing and an additional cost for each book printed. The total production cost C (in dollars) is given by the function =C+19.95N650, where N is the number of books. The total revenue earned (in dollars) from selling the books is given by the function =R32.80N. Let P be the profit made (in dollars). Write an equation relating P to N. Simplify your answer as much as possible.