I am having trouble computing the following ratios.

Cash Merchandise inventory Store supplies Prepaid insurance Store equipment Accumulated depreciationStore Accounts payable J. Nelson, Capital J. Nelson, Withdrawals Sales Sales discounts Sales returns and allowances Cost of goods sold NE LSOU company Unadjusted Trial Balance January 31 Debit $ 13,9aa 42, saa equipment Depreciation expenseStore equipment Sales salaries expense Office salaries expense Insurance expense Rent expenseselling space Rent expenseOffice space Store supplies expense Advertising expense Totals 12, aaa 5, saa 2, laa 1, saa 38, 13, laa 13,1aa 6, saa s, saa 9, saa $170, 25a Credit $ 17,6aa 18, aa 19,aa 115,65a $170,25a