Jim Bob Co. has a perpetual inventory system that uses the first-in, first-out method. For the month of March, the following purchase and sales transactions occurred: Date Description Units Unit Selling Cost Price Mar. 1 Opening inventory 100 $6 Mar. 3 Purchase 250 $7 Mar. 5 Sale 210 $14/unit Mar. 13 Purchase 150 $8 Mar. 15 Sale 50 $14/unit Mar. 28 Sale 120 $14/unit For each of the following, type the dollar amount (nearest dollar without dollar sign (5) or comma, e.g. 15000)? Mar. 5 cost of goods sold Mar. 15 cost of goods sold Mar. 28 cost of goods sold Mar. 15 Sale JU 120 Mar. 28 Sale $14/unit For each of the following, type the dollar amount (nearest dollar without dollar sign ($) or comma, e.g. 15000)? Mar. 5 cost of goods sold Mar. 15 cost of goods sold Mar. 28 cost of goods sold Ending inventory, March 31 Gross profit for March