Ali Parts was organized on May 1, 2015, and made its first purchase of merchandise on May 3. The purchase was for 2,000 units at a price of $10 per unit. On May 5, Ali Parts sold 1,500 of the units for $14 per unit to Bakr Co. Terms of the sale were 2/10, n/60. a. On May 7, Bakr returns 200 units because they did not fit the customer's needs. Ali Parts restores the units to its inventory. b. On May 8, Bakr discovers that 300 units are damaged but are still of some use and, therefore, keeps the units. Ali Parts sends Bakr a credit memorandum for $600 to compensate for the damage. Required Prepare entries for Ali Parts to record the May 5 sale and each of the above separate transactions using a perpetual inventory system