Perpetual inventory using UIFO Beginning inventory, purchases, and sales data for DVD players are as follows: The business maintains a perpetual inventory system, costing by the last-in, first-out method. at two different costs, enter the units with the HIGHERt unit cost first in the Cost of Goods Sold Unit Cost column and IOWER unit cost first in the Imentary Unit Cost column. The business maintains a perpetust inventory system, costing by the last-in, first-out method. Determine the cost of goods sold for each sale and the inventory balance after each sale, presenting the data in the form illustrated in Exhibit 4, Under LuFo, if units are in imventory at two different costs, enter the units with the HIGHER unit cost first in the Cost of Goods Sold Unit Cost column and LowER unit cost first in the Inventror Unit Cost coluinn