Having trouble to find the right answer for the ones that are marked as wrong. I provided all the information that is given to me. An explanation as to how the right answer was reached on the ones i got wrong is greatly appreciated. Thank you!

College Coasters is a San Diego-based merchandiser specializing in logo-adorned drink coasters. The company reported the following balances in its unadjusted trial balance at December 1. $ 9,800 1,900 500 540 660 110 1,380 300 Cash Accounts Receivable Inventory Prepaid Rent Equipment Accumulated Depreciation Accounts Payable Salaries and Wages Payable Income Taxes Payable Common Stock Retained Earnings Sales Revenue Cost of Goods Sold Rent Expense Salaries and Wages Expense Depreciation Expense Income Tax Expense Office Expenses 6,400 2,600 14,180 7,570 990 1,600 110 1,300 The company buys coasters from one supplier. All amounts in Accounts Payable on December 1 are owed to that supplier. The inventory on December 1 consisted of 1,000 coasters, all of which were purchased in a batch on July 10 at a unit cost of $0.50. College Coasters records its inventory using perpetual inventory accounts and the FIFO cost flow method. During December, the company entered into the following transactions. Some of these transactions are explained in greater detail below. a. Purchased 400 coasters on account from the regular supplier on 12/1 at a unit cost of $0.52, with terms of n/60. b. Purchased 1,000 coasters on account from the regular supplier on 12/2 at a unit cost of $0.55, with terms of n/60. c. Sold 1,900 coa ers on count on 12/3 at a nit price of $1.10. d. Collected $970 from customers on account on 12/4. e. Paid the supplier $1,380 cash on account on 12/18. f. Paid employees $490 on 12/23, of which $270 related to work done in November and $220 was for wages up to December 22. g. Loaded 100 coasters on a cargo ship on 12/31 to be delivered the following week to a customer in Kona, Hawaii. The sale was made FOB destination with terms of n/60. Other relevant information includes the following at 12/31: h. College Coasters has not yet recorded $190 of office expenses incurred in December on account. i. The company estimates that the equipment depreciates at a rate of $9 per month. One month of depreciation needs to be recorded. j. Wages for the period from December 2331 are $100 and will be paid on January 15. k. The $540 of Prepaid Rent relates to a six-month period ending on May 31 of next year. 1. The company incurred $700 of income tax but has made no tax payments this year. m. No shrinkage or damage was discovered when the inventory was counted on December 31. n. The company did not declare dividends and there were no transactions involving common stock. No Date General Journal Debit Credit 1 Dec 01 208 Inventory Accounts Payable 208 2 Dec 02 550 Inventory Accounts Payable 00 550 3 Dec 03 2,090 > Accounts Receivable Sales Revenue 2,090 4 Dec 03 Cost of Goods Sold 968 X Inventory 968 5 Dec 04 Cash 970 > Accounts Receivable 970 > 6 Dec 18 1,380 Accounts Payable Cash 1,380 7 Dec 23 220 Salaries and Wages Expense Salaries and Wages Payable OOO 270 Cash 490 8 Dec 31 No Journal Entry Required 9 Dec 31 190 > Office Expenses Accounts Payable 190 11 Dec 31 100 Salaries and Wages Expense Salaries and Wages Payable 100 12 Dec 31 Rent Expense 90 Prepaid Rent 90 13 Dec 31 700 Income Tax Expense Income Taxes Payable 700 14 Dec 31 No Journal Entry Required 15 Dec 31 No Journal Entry Required Cash Accounts Receivable No. Date Debit Credit Balance No. Date Debit Credit Balance Dec 01 Dec 01 5 Dec 04 970 3 Dec 03 2,090 9,800 10,770 9,390 8,900 1,900 3,990 3,020 6 Dec 18 5 Dec 04 970 1,380 490 7 Dec 23 Inventory Prepaid Rent No. Date Debit Credit Balance No. Date Debit Credit Balance Dec 01 500 540 Dec 01 Dec 31 1 208 12 90 450 Dec 01 Dec 02 Dec 03 708 1,258 2 550 4 968 290 Equipment Accumulated Depreciation Equipment No. Date Debit Credit Balance No. Date Debit Credit Balance Dec 01 660 Dec 01 110 10 Dec 31 9 119 Accounts Payable Salaries and Wages Payable No. Date Debit Credit No. Date Debit Credit Balance Dec 01 300 1 208 Balance 1,380 1,588 2,138 758 7 Dec 01 Dec 23 Dec 31 Dec 01 Dec 02 270 30 2 550 11 100 130 6 Dec 18 1,380 9 Dec 31 190 948 Income Taxes Payable Common Stock No. Date Debit Credit Balance No. Date Debit Credit Balance 6,400 0 Dec 01 Dec 01 Dec 31 13 700 700 Sales Revenue Retained Earnings Debit Credit No. Date No. Date Debit Credit Balance 2,600 Dec 01 Dec 01 Dec 03 Balance 14,180 16,270 3 2,090 Cost of Goods Sold Depreciation Expense No. Date Debit Credit No. Debit Credit Balance Balance 7,570 8,538 Date Dec 01 Dec 01 Dec 03 110 4 968 10 Dec 31 9 119 Office Expenses Rent Expense No. Date Debit Credit Balance No. Date Debit Credit Balance Dec 01 Dec 01 990 1,300 1,490 1 9 Dec 31 190 12 Dec 31 90 1,080 Salaries and Wages Expense Income Tax Expense Debit Credit No. Date Debit Credit Balance No. Date Balance Dec 01 0 Dec 01 Dec 23 220 1,600 1,820 1,920 13 Dec 31 700 7 11 700 Dec 31 100 COLLEGE COASTERS Trial Balance December 31, 2020 Account Title Debit Credit Cash $ 8,900 3,020 Accounts Receivable 1 t 290 450 660 119 Inventory Prepaid Rent Equipment Accumulated DepreciationEquipment Accounts Payable Salaries and Wages Payable Income Taxes Payable Common Stock 948 130 7001 6,400 2,600 Retained Earnings Sales Revenue 16,270 Cost of Goods Sold 8,538 119 1,490 1,080 Depreciation Expense Office Expenses Rent Expense Salaries and Wages Expense Income Tax Expense Total 1,920 700 $ 27,167 $ 27,167 Adjusted COLLEGE COASTERS Income Statement For the Year Ended December 31 16,270 8,538 7,732 $ Revenues: Sales Revenue Cost of Goods Sold Gross Profit Operating Expenses: Salaries and Wages Expense Rent Expense Office Expenses Depreciation Expense 1,920 1,080 1,490 119 0 $ 4,609 3,123 Total Operating Expenses Income before Income Tax Expense Income Tax Expense Net Income t 700 $ 2,023 X COLLEGE COASTERS Balance Sheet As of December 31 Assets Current Assets Cash 8,900 3,020 Accounts Receivable 290 450 Inventory Prepaid Rent Total Current Assets Equipment Total Assets 12,660 660 x 13,320 x x 948 130 700 Current Liabilities Liabilities Accounts Payable Salaries and Wages Payable Income Taxes Payable Total Current Assets Stockholders' Equity Common Stock Retained Earnings Total Stockholders' Equity Total Liabilities and Stockholders' Equity X $ 1,778 6,400 4,623 X 11,023 12,801 $ $ 9.5 times per year Inventory Turnover Ratio Days to Sell 38.4 X days