Prepare a monthly flexible selling expense budget for Podism Company for sales volumes of $270,000, $350,000, and $480,000, based on the following data: Sales commissions 7% of sales Sales manager's salary $62,000 per month Advertising expense $70,000 per month Shipping expense 2% of sales Miscellaneous selling expense $2,500 per month plus 1/2% of sales Podism Company Monthly Selling Expense Budget Sales volume $270,000 $350,000 $480,000 Variable expense: Sales commissions $ $ $ Shipping expense Miscellaneous selling expense Total variable expense $ $ $ Fixed expense: Sales manager's salary $ $ $ Advertising expense Miscellaneous selling expense Total fixed expense $ $ $ Total selling expense $ $ $