The following data regarding purchases and sales of a commodity were taken from the related perpetual inventory account: june 1 balance 25 units at $60 - 6 sale 20 units - 8 purchase 20 units at $61 - 16 sale 10 units - 20 purchase 20 units at $62 - 23 sale 25 units - 30 purchase 15 units at $63 calculate the cost of the ending inventory at june 30, using (a) the first-in, first-out (fifo) method and (b) the last-in, first-out (lifo) method. identify the quantity, unit price, and total cost of each lot in the inventory.