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 86000 46500 38500

Total Liability 49000 18000 12000

Total Stockholders' equity 37000 28500 26500

Sales Revenue 98000 87500 52500

Net Income 21300 11200 4300

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

Calculate the net profit margin ratio for each year. Do you think you should be promoted?