6. The following data regarding purchases and sales of a commodity were taken from the related perpetual inventory account: June 1 Balance Sale Purchase Sale Purchase Sale Purchase 25 units at $60 20 units 20 units at $61 10 units 20 units at $62 25 units 15 units at $63 Determine the cost of the inventory balance at June 30, using (1) the first-in, first-out method and (2) the last-in, first-out method. Identify the quantity, unit price, and total cost of each lot in the inventory