13. Perform a vertical analysis for the entry "Sales Returns and Allowances" on the portion of an income statement shown below. (Round to the nearest tenth) ross Sales $ 288,000 7,600 280,400 ss: Sales Returns and Allowances et Sales ost of Good Sold Merchandise Inventory, Jan. 1 Net purchases Goods Available for Sale Less: Merchandise Inventory, Dec. 31 47,500 64,300 112,375 77,800 34,575 $245,825 ost of Goods Sold ross Margin a. 2.6% c. 3990