14% of sales Sales commissions Advertising expense 18% f sales Miscellaneous administrative expense $7,500 per month plus 12% of sales $29,000 per month Office salaries expense Customer support expenses $12,000 per month plus 20 % sales Research and development expense $30,000 per month Prepare a flexible selling and administrative expenses budget for March for sales volumes of $400,000, $500,000, and $600,000. (Use Exhibit 5 as a model.) Cloud Productivity Inc. Flexible Selling and Administrative Expenses Budget For the Month Ending March 31 $600000 Total sales $400000 $500000 Variable cost: $ $ $ Total variable cost Fixed cost: $ $ Total fixed cost Total selling and administrative expenses