Grouper Corp. uses a perpetual inventory system. Data for product E2-D2 includes the following purchases. On June 1, Grouper, sold 24 units, and on August 27, 36 more units. (a) Your answer is correct. Calculate the average cost of the goods sold in the sale. (Round answers to 3 decimal ploces, e.8. 5.125.) June 1 sale: 5 Aug 27 sale: $ Compute the cost of goods sold using FIFO, LIFO, and average-cost. (Round answers to 0 decimal places, e.g. 125.)