On September 1, Cheyenne Office Supply had an inventory that included a variety of calculators. The company uses a perpetual inventory system. During September, the following transactions occurred. Sept. 6 Purchased calculators from Skysong Co, at a total cost of $2,160, terms n/30, FOB shipping point. 9 Paid freight of $90 on calculators purchased from Skysong Co. 10 Returned calculators to Skysong Co. for $125 cash (including freight) because they did not meet specifications. 12 Sold calculators costing $675 for $864 to Sura Book Store, on account, terms n/30. 14 Granted credit of $32 to Sura Book Store for the return of one calculator that was not ordered. The calculator cost $25. 20 Sold 30 calculators costing $825 for $1.155 on account to Davis Card Shop, on account, terms n/30. Journalize the September transactions for Cheyenne Office Supply. (List all debit entries before credit entries. Credit account titles are automatically indented when amount is entered. Do not indent manuolly. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts.) (To record merchandise returned) (To record cost of merchandise returned) (To record credit sale) (To record cost of merchandise sold)