The following units of a particular item were available for sale during the calendar year: jan. 1 inventory 4,000 units at $20apr. 19 sale 2,500 unitsjune 30 purchase 6,000 units at $24sept. 2 sale 4,500 unitsnov. 15 purchase 1,000 units at $25the firm maintains a perpetual inventory system. determine the cost of merchandise sold for each sale and the inventory balance after each sale, assuming the first-in, first-out method. present the data in the form illustrated in exhibit 4. under fifo, if units are in inventory at two different costs, enter the units with the lower unit cost first in the cost of merchandise sold unit cost column and in the inventory unit cost column. schedule of cost of merchandise soldfifo methodpurchases cost of merchandise sold inventorydate quantity unit cost total cost quantity unit cost total cost quantity unit cost total costjan. 1 $ $apr. 19 $ $ june 30 $ $ sept. 2 nov. 15 dec. 31 balances $ $