Income statement for Mun's boutique Net sales $1,345,500 Cost of goods sold $833,000 Gross margin $512,500 Operating expenses $287,365 Interest expenses $2,964 Total expenses $290,329 $222,171 Taxes $11,314 Net profit, pretax Based on the income statement for Mun's boutique, what is the net profit margin (after tax) percentage of the store? 15.65% 15.67% 15.63% 15.71%