5. After three years in business, you are being evaluated for a promotion. One measure is how effectively you managed the sales and expenses of the business. The following data are available:

	2018*		2017		2016
Total assets	$	87,000	$	45,000	$	43,000
Total liabilities		50,000		26,500		14,000
Total stockholders equity		37,000		18,500		29,000
Sales revenue		98,500		77,500		57,500
Net income		22,600		11,000		4,900

*At the end of 2018, Kaylee decided to open a second store, requiring loans and inventory purchases prior to the stores opening in early 2019.

5-a. Calculate the net profit margin ratio for each year. (Round your answers to 1 decimal place.)