Can you help with the following accounting exercise?

Please, work in spreadsheet for better understanding. Thank you.

EX 7-2 Flexible budget for selling and administrative expenses for a service company Cloud Productivity Inc. uses flexible budgets that are based on the following data: Sales commissions 17% of sales Advertising expense 21% of sales Miscellaneous administrative expense $5,000 per month, plus 8% of sales Office salaries expense $25,000 per month Customer support expenses $10,000 per month plus 22% of sales Research and development expense $35,000 per month Prepare a flexible selling and administrative expenses budget for March for sales volumes of $600,000 $800,000, and $900,000