The following information relates to Ivanhoe Kitchen Ltd.'s inventory transactions during the month of March. All of the units sold were priced at $65 per unit. Ivanhoe Kitchen Ltd. uses the periodic inventory system. Calculate Ivanhoe Kitchen's cost of goods sold, gross margin, and ending inventory for the month of March using weightedaverage. (Round calculations for cost per unit to 2 decimal places, e.g. 10.52 and final answers to 0 decimal places, e.g. 61,052. ) $ Gross margin $ Ending inventory