Flexible budget for selling and administrative expenses for a service company

Digital Solutions Inc. uses flexible budgets that are based on the following data:

Line Item Description	Value
Sales commissions	15% of sales
Advertising expense	20% of sales
Miscellaneous administrative expense	$5,000 per month plus 12% of sales
Office salaries expense	$30,000 per month
Customer support expenses	$14,000 per month plus 20% of sales
Research and development expense	$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 4 as a model.)