At the beginning of the year, Sheffield Corp. had total assets of $880,000 and total liabilities of $550,000. (Treat each item independently.) (a) If total assets increased $165,000 during the year and total liabilities decreased $88,000, what is the amount of stockholders' equity at the end of the year? Stockholders' equity $ (b) During the year, total liabilities increased $110,000 and stockholders' equity decreased $77,000. What is the amount of total assets at the end of the year? Total assets $ (c) If total assets decreased $88,000 and stockholders' equity increased $121,000 during the year, what is the amount of total liabilities at the end of the year? Total liabilities $