8. For the current year, the profit of Alpha and Omega was incorrectly calculated as $547,715 for the year ended December 31 . You are called in as the accountant to determine the correct profit. After examination of the accounts, you find the following errors: \begin{tabular}{|c|c|c|c|} \hline & & Overstated & Understated \\ \hline(1) & Office supplies (ending inventory) & $115 & \\ \hline(2) & Depreciation expense, building & 5,800 & \\ \hline(3) & Depreciation expense, equipment & & $650 \\ \hline(4) & Salaries payable (end of year) & 1,600 & \\ \hline(5) & Prepaid insurance (end of year) & & 4,400 \\ \hline(6) & Rent expense & & 1,200 \\ \hline(7) & Interest expense & 950 & \\ \hline(8) & Property taxes expense & \\ \hline(9) & Services Revenue & \\ \hline(10) & Rental revenue & 500 & \\ \hline \end{tabular} Tip: Determine wher the edjusting endry shoulatie then detormine if ve entry uncuares resenue (eR) increases or expeuc (DR) or the reveru. Calculate the correct profit for this year. 9. A spreadsheet used to draft a company's unadjusted trial balance, adjusting entries, adjusted trial balance, and financial statements, and which is an optional step in the accounting process, is a(n)