In 2020, XYZ Inc. had sales of $35.5 million, costs of goods sold of $17.2 million, Sales, General and Administrative (SG&A) expenses of $6 million, Depreciation expenses of $4.3 million, Interest expenses of $800,000, Average Tax Rate of 21%, total debt of $15 million, and total assets of $28 million. Calculate XYZ Inc.'s profit margin as of 2020. 16.02% 15.21% 13.80% 15.13%