DeWitt Company uses flexible budgets to control its selling expenses. Monthly sales are expected to range from $170,000 to $200,000. Variable costs and their percentage relationship to sales are sales commissions 6%, advertising 4%, traveling 3%, and delivery 2%. Fixed selling expenses will consist of sales salaries $35,000, depreciation on delivery equipment $7,000, and insurance on delivery equipment $1,000.

Instructions
Prepare a monthly flexible budget for each $10,000 increment of sales within the relevant range for the year ending December 31, 2014.