Assume that the business in Exercise 7-9 maintains a perpetual inventory system. Determine the cost of merchandise sold for each sale and the inventory balance after each sale, assuming the last-in, first-out method. Present the data in the form illustrated in Exhibit 5.

Exhibit 5:

Data From Exercise 7-9:

The following units of a particular item were available for sale during the calendar year:

The firm uses the weighted average cost method with a perpetual inventory system.