Staples, Inc. is one of the largest suppliers of office products in the United States. Suppose it had net income of $672.30 million and sales of $22,410.0 million in 2019. Its total assets were $12,000 million at the beginning of the year and $15,000 million at the end of the year. What is Staples, Inc.s (a) asset turnover and (b) profit margin?