Obj. $2,3$ Beginning inventory, purchases, and sales data for DVD players are as follows: Nov.$1$Inventory $140$ units at $$2910$Sale $110$ units $15$Purchase $150$ units at $$3020$Sale $120$ units $24$Sale $35$ units $30$Purchase $140$ units at $$34$ The business maintains a perpetual inventory system, costing by the first$-$in$,$ first$-$out method. EX $6-4$ Perpetual inventory using LIFO $485$ Assume that the business in Exercise $6-3$ maintains a perpetual 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 $4.$