please explain briefly

The Cutlery Trial Balance August 31, 2017 CA Dr $1,950 0 2,400 2,000 31,000 Account Cash Accounts Receivable Prepaid Insurance Furniture Store Equipment Accounts Payable Unearned Service Revenue Joanne, Capital Joanne, Withdrawal Service Revenue Wages Expense Rent Expense Hydro expense Totals $14,450 500 26,000 500 3,800 250 3,200 450 $44,750 $44,750 The following additional information is available for the month just ended: a. Depreciation of $100 per month will be taken on the furniture b. It is estimated that the store equipment will have a S 1,000 value at the end of its estimated five-year (or 60 -month) useful life. Joanne will record a full month of depreciation for August c. It was determined that the balance in unearned service revenue at August 31 should be $420 d. The prepaid insurance represents six months of Insurance beginning August 1