Fallon Company uses flexible budgets to control its selling expenses. Monthly sales are expected to range from $165,100 to $205,600. Variable costs and their percentage relationship to sales are sales commissions 7%, advertising 6%, travel 4%, and delivery 2%. Fixed selling expenses will consist of sales salaries $34,800, depreciation on delivery equipment $6,700, and insurance on delivery equipment $1,600. Prepare a monthly selling expense flexible budget for each $13,500 increment of sales within the relevant range for the year ending December 31, 2020. (List variable costs before foxed costs.)