An engineering contracting company expanded rapidly during 2016 by investing in new plant and equipment and other inventory. As a result, total assets increased from SR4,000,000 at the beginning of 2016 to SR7,000,000 at the end of 2016. The owner's equity at the beginning of the year was SR2,500,000 and the company's net profit for the year was SR500,000. Assuming the company paid no dividends during 2016; a. what were the company's total liabilities at the beginning and at the end of the year if there is no change in capital stock of the company during 2016? b. what were the company's total liabilities at the end of 2016 if it received SR2,000,000 in 2016 from the sale of additional capital stock