Spelman Corporation has Sales of $36,800, Depreciation Expense of $3,000, Interest Expense of $2,000, Cost of Goods Sold of $15,000, other costs of $7,800, and an average tax rate of 34 percent. What is the firm's profit margin? Please record your answer using the following format (12.54). Record your answer to two decimal places. While the answer should be given as a percentage, do NOT place a "%" directly after the number. Do not type the parentheses: just type the number!