All of the units sold were priced at $65 per unit. Cullumber Kitchen Ltd. uses the perpetual inventory system. Calculate Cullumber 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.) Cost of goods sold $ Gross margin $ Ending inventory \$