Accounts and their balances from the trial balance of Roller Skate Store for the year ended December 31, 2015 are below. Roller Skate Store Account Accounts payable Trial Balance December 31, 2015 Debit Credit $ 3,000 7,500 8,000 3,500 300 Accounts receivable Accumulated depreciation, equipment Depreciation expenses, equipment. Sales Discount Cash Cost of goods sold Equipment Insurance expense Interest expense ABC, capital ABC, withdrawals Inventory Notes payable Rent expense Rent revenue Salaries expense Sales Sales return and allowance Supplies Supplies expense 1,300 75,000 76,110 250 40 32,300 1,100 2,200 6,000 160 1,200 1,200 120,000 1,500 300 40 170,500 $170,500 a) Use the information above to prepare a multi-step income statement for the year ended December 31, 2015 (10 marks) b) Calculate the gross profit ratio for the year ended December 31, 2015. Interpret the ratio. (2 marks)