The trial balance columns of the worksheet for Warren Roofing at March 31, 2022, are as follows. Other data: 1. A physical count reveals only $480 of roofing supplies on hand. 2. Depreciation for March is $250. 3. Unearned revenue amounted to $260 at March 31 . 4. Accrued salaries are $700. Prepare an income statement for the month of March. (Enter negative amounts using either a negative sign preceding the number e.g. 45 or parentheses e.g. (45).)