Can someone help me solve this problem? How are the numbers wrong?

Instructions Sold merchandise on account to Old Town Cafe $18,450. The cost of goods May 24 sold was $11,000. Sept Received $6,000 from Old Town Cafe and wrote off the remainder owed on the 30 sale of May 24 as uncollectible Dec 7 Reinstated the account of Old Town Cafe that had been written off on September 30 and received $12,450 cash in full payment Journalize the above transactions in the accounts of Zippy Interiors Company, a restaurant supply company that uses the allowance method of accounting for uncollectible receivables. Refer to the Chart of Accounts for exact wording of account titles. Instructions Shaded cells have feedback. Journal Journalize the transactions in the accounts of Zippy Interiorss Company, a restaurant supply company that uses the allowance method of accounting for uncollectible receivables. Refer to the Chart of Accounts for exact wording of account titles How does grading work? PAGE Score: 111/138 ACCOUNTING EQUATION JOURNAL DATE DESCRIPTION POST. REF DEBIT CREDIT ASSETS LIABILITIES EQUITY May 24 39,560.00 Accounts Receivable-Old Town Cafe 1 39,560.00 Sales 2 24,540.00 Cost of Goods Sold 3 24,540.00 Inventory 4 Sep. 30 Cash 11.930,00 5 T ALlowance for Doubtful Accounts 27,630.00 6 Accounts Receivable-Old Town Cafe 39,560.00 7 27,630.00 Dec. 7 Accounts Receivable-Old Town Cafe 8 ALllowance for Doubtful Accounts 27,630.00 9 Cash 27,630.00 10 T Accounts Receivable-Old Town Cafe 27,630.00 11 Points: 21.72 27