5-3 On September 1, the beginning of its fiscal year, Campus Office Supply Ltd. had an inventory of 100 calculators at a Record and 500 each. The company uses a perpetual inventory system. During September, the following transactions occurred; and sales ti Durchased 750 calculators for $20 each from Digital Corp. on account, terms n/30. (LO 2,3) in calculators to Digital for $200 credit because they did not meet specifications 11 Sold 260 calculators for $30 each to Campus Book Store, terms n/30 10 Returned 10 calculators to Digital for $200 CHAPTER 5 Merchandising Operations Sept. 14 Granted credit of $300 to Campus Book Store for the return of 10 calculators that were not ondered. The calculators were restored to inventory 21 Sold 300 calculators for $30 each to Student Card Shop, terms 1/10, n/30. 29 Paid Digital the amount owing. 30 Received payment in full from the Student Card Shop. Instructions (a) Record the September transactions. (b) Create accounts for the Inventory and Cost of Goods Sold accounts. Enter the opening balances and post the September transactions. (e) Determine the ending balances of inventory and cost of goods sold in both dollars and quantities