Additional Problem 5-9 (Part Level Submission) Arlington Merchants reported the following on its income statement for the fiscal years ending December 31, 2013 and 2012. 2013 2012 Sales $4,853,500 $4,755,900 Cost of goods sold 3,258,950 3,200,300 Gross Profit 1,594,550 1,555,600 Operating expenses 875.880 896,280 Proth $718,670 $659,320 (a) Calculate the gross profit margin for Arlington for 2012 and 2013. (Round answers to I decimal place, c. 52.9.) 2012