Flexible Budget for Selling and Administrative Expenses for a Service Company Digital Solutions Inc. uses flexible budgets that are based on the following data: Sales commissions Advertising expense Miscellaneous administrative expense Office salaries expense Customer support expenses Research and development expense 15% of sales 18% of sales $6,000 per month plus 12% of sales $29,000 per month $13,000 per month plus 20% of sales $30,000 per month Prepare a flexible selling and administrative expenses budget for October for sales volumes of $400,000, $500,000, and $600,000. (Use Exhibit 5 as a model.) Digital Solutions Inc. Flexible Selling and Administrative Expenses Budget Total sales For the Month Ending October 31 $400,000 $500,000 $600,000 Variable cost: Total variable cost Fixed cost: