need help

Beginning inventory, purchases, and sales data for DVD players are as follows: The business maintains a perpetual inventory system, costing by the first-in, first-out method. a. Debermine the cost of goods sold for each sale and the inventory balance after each sale, presenting the data in the form ilustrated in E b. Based upon the preceding data, would you expect the invertary to be higher or lower using the last-inh first-out mechod? x