Given the following adjusted trial balance: Debit Credit Cash $648 Accounts receivable 818 Inventory 1218 Prepaid rent 34 120 $20 Equipment Accumulated depreciation-equipment Accounts payable Unearned service revenue 32 48 Common stock 78 Retained earnings 2580 Service revenue 144 22 Interest revenue Salaries and wages expense 60 Travel expense 26 Total $ 2924 $2924 After closing entries have been posted, the balance in retained earnings will be