Ivanhoe reports the following information at the end of the current year: Sales Revenue $641000 Selling Expenses 139900 General and Administrative Expenses 78400 Gross Margin 323600 Net Income 99100 Merchandise Inventory 145300 Cash 75100 Accounts Receivable 230800 What is Ivanhoe's cost of goods sold at year-end? $177500 $239000 $305900 $317400