Campus Stop, Inc., is a student co-op. Campus Stop uses a perpetual inventory system. The following transactions (summarized) have been selected for analysis: a. Sold merchandise for cash (cost of merchandise $156,150). b. Received merchandise returned by customers as unsatisfactory (but in perfect condition) $283,800 for cash refund (original cost of merchandise $860) c. Sold merchandise (costing $10,800) to a customer on account with terms 2/10, n/30. d. Collected half of the balance owed by the customer in (c) within the discount period. 1,660 24,000 11,760 e. Granted a partial allowance relating to credit sales that the customer in (c) had not yet paid. 1,880