Hoffman, Incorporated adjusts its books each month but closes its books at the end of the year. The companys unadjusted trial balance at March 31 is as follows: Debit Credit Cash $ 11,100 Accounts Receivable 9,800 Supplies 1,480 Prepaid Insurance 2,800 Equipment 22,200 Accumulated Depreciation: Equipment $ 8,880 Unearned Service Revenue 7,400 Capital Stock 6,100 Retained Earnings 24,300 Dividends 1,740 Service Revenue Earned 13,910 Salaries Expense 8,700 Utilities Expense 570 Rent Expense 2,200 Totals $ 60,590 $ 60,590 The equipment had an estimated useful life of five years. Compute the book value of the equipment at March 31, after the proper March adjustment is recorded