Given the following adjusted trial balance: Debit Credit Cash $1994 Accounts receivable 2518 Inventory 3749 Prepaid rent 103 Equipment 360 Accumulated depreciation-equipment $62 Accounts payable 98 Unearned service revenue 146 Common stock 248 Retained earnings 7930 Service revenue 442 Interest revenue 67 Salaries and wages expense 190 Travel expense 79 Total $8993 $8993 Net income for the year is: $455. $509. $240. $716.