Dakin's Department Store uses a perpetual inventory system. Data for product E2-D2 include the following purchases.
                Date                      Number of Units              Unit Price
                May 7                                    50                           $10
                July 28                                   30                           $15
On June 1 Dakin sold 30 units, and on August 27, 33 more units. Compute
 the cost of goods sold using (1) FIFO, (2) LIFO, and (3) average cost. 
(For the average cost computation, round the per unit cost to 0 decimal 
places, e.g. 15.)
Click here: 2. Dakin's Department Store uses a perpetual inventory system
