return on sales
From Longman Business Dictionaryreturn on salesreˌturn on ˈsales abbreviation ROS noun [singular, uncountable]FINANCEACCOUNTINGMARKETING the profit that a company has obtained from selling its products or services in a particular period of time, in relation to its sales for the periodTen years ago the company had a return on sales of less than 6%. Since then, sales have doubled and profits have quadrupled.