Discount Office Systems uses a perpetual inventory system. The adjusted trial balance of Discount Office Systems at March 31, 2018, follows: (Click the icon to view the adjusted trial balance.) Prepare Discount's single-step income statement for the year ended March 31, 2018 Discount Office Systems Income Statement Year Ended March 31, 2018 Net Income (Loss) Discount Office Systems Adjusted Trial Balance March 31, 2018 Balance Account Title Debit Credit Cash $ Accounts Receivable Merchandise Inventory 4,200 13,500 31,800 6,000 42,600 $ 13,000 Office Supplies Equipment Accumulated Depreciation Equipment Accounts Payable Salaries Payable Notes Payable, long-term Common Stock Retained Earnings 9,300 1,000 7,900 12,000 6,400 45,500 230,000 Dividends Sales Revenue Cost of Goods Sold Selling Expense Administrative Expense Interest Expense 92,000 26,800 14,300 2,900 S 279,600 $ Total 279,600