L1Fo Phrpetual Inventory. The beginning inventory at Dunne Co, and data on purchases and sales for a three-month period are as followis! Reequireds 1. Fecerd the invertap, purchases, and cost of goods sold data in a wirpetual inventory record similar to the one illuatrated in Exhibit 4 ; using the lastein, first-eut mathod, Unde Goods Sold Unit Cont column and LOWEF unit cost first in the Inventory Unit Cost column