The manager of a dessert cafe wants to determine the necessary volume of sales dollars next month to break-even. There are three sales categories: desserts, liquor, coffee. The following table gives estimates of number of units sold, selling price per unit, and cost per unit for each category. The fixed cost for running the cafe (that is, rent, utilities, etc.) is $21000 per month. What is the break-even point in dollars per month? Round the final answer to a whole number. All intermediate computations should be carried to at least the 4th decimal digit