At the beginning of the year, Morales Company had total assets of $800,000 and total liabilities of $500,000. (Treat each item independently.) (a) If total assets increased $150,000 during the year and total liabilities decreased $80,000, what is the amount of stockholders' equity at the end of the year? Stockholders' equity \$ (b) During the year, total liabilities increased $100,000 and stockholders' equity decreased $70,000. What is the amount of total assets at the end of the year? Total assets \$