Answer:
Apple Inc.
a. Calculate Apple Inc.'s working capital, current ratio, and acid-test ratio at September 27, 2014, and September 28, 2013. (Round your ratio answers to 1 decimal place. Enter "Working capital" in million of dollars.)
September 2014:
a) Working Capital = Current Assets - Current Liabilities
= $45,660,000 - $34,978,000 = $10,682,000
b) Current Ratio = Current Assets / Current Liabilities
= $45,660 / $34,978 = 1.3 : 1
c) Acid-Test Ratio = Current Assets - Inventory / Current Liabilities
= $45,660 - 930 / $34,978 = 1.3 : 1
September 2013:
a) Working Capital = Current Assets - Current Liabilities
= $41,940,000 - $21,160,000 = $20,780,000
b) Current Ratio  = Current Assets / Current Liabilities
= $41,940 / $21,160 = 2 : 1
c) Acid-Test Ratio Current Assets - Inventory / Current Liabilities
= $41,940 -1,200 / $21,160 = 1.9 : 1
b. Calculate Apple's ROE for the years ended September 27, 2014, and September 28, 2013. (Round your answers to 1 decimal place.)
September 2014
ROE = Net Income/Equity x 100 = $26,050/$77,290 x 100 = 33.7%
September 2013
ROE = Net Income/Equity x 100 = $14,160/$48,050 x 100 = 29.5%
c. Calculate Apple's ROI, showing margin and turnover, for the years ended September 27, 2014, and September 28, 2013. (Round "Turnover" answers to 2 decimal places. Round your percentage answers to 1 decimal place.)
September 2014
ROI = Margin x Turnover = Net Operating Income/Sales x Sales/Average Assets
= ($33,950/$108,400) x ($108,400/$120,880)
= 0.31 x 0.90
= 0.279 = 27.9%
Average Assets = $120,880 ($147,820 + 93,940) /2
September 2013
ROI = margin = turnover = Net Operating Income/Sales x Sales/Average Assets
= ($18,530/$65,370) x ($65,370/$70,880)
= 0.28 x 0.92
= 0.258 = 25.8%
Average Assets = $70,880 ($93,940 + 47,820) /2
Explanation:
<h3>Apple Inc. </h3><h3>Income Statement</h3>
For the Fiscal Years Ended September 27 and September 28, respectively: 
                                                              2014                2013
Net sales                                           $108,400            $65,370
Costs of sales                                      64,580              39,690
Operating income                               33,950               18,530
Net income                                       $26,050              $14,160
 
Balance Sheet:
Assets 
Current assets: 
Cash and cash equivalents                                            $9,580      $10,630
Short-term marketable securities                                   16,280         14,510 
Accounts receivable, less allowances of $84 & $99     5,520          5,670 
Inventories                                                                           930           1,200
Deferred tax assets                                                          2,170            1,780 
Vendor non-trade receivables                                       6,500           4,560
Other current assets                                                      4,680           3,590
Total current assets                                                     45,660          41,940 
Long-term marketable securities                               85,770          25,540
Property, plant, and equipment, net                            7,930          22,670 
Goodwill                                                                         1,060               890
Acquired intangible assets, net                                   3,690               490 
Other assets                                                                  3,710              2,410 
Total assets                                                             $147,820        $93,940 
Liabilities and Shareholders Equity
Current liabilities:
Accounts payable                                                     $14,780          $12,160
Accrued expenses                                                      9,400             5,870 
Deferred revenue                                                       4,250              3,130
Commercial paper                                                      6,548             0 
Total current liabilities                                              34,978             21,160
Deferred revenue: noncurrent                                   1,840              1,290
Long-term debt                                                        23,452            17,760
Other noncurrent liabilities                                      10,260             5,680
Total liabilities                                                          70,530           45,890 
Shareholders' Equity:
Common stock and additional paid-in capital,$0.00001
par value, 1,900,000 shares authorized; 929,430 & 916,130 
shares issued & outstanding, respectively            13,490             10,810
Retained earnings                                                  63,200           37,320 
Accumulated other comprehensive income (loss)    600                (-80)
Total shareholders' equity                                     77,290           48,050
Total liabilities & shareholders' equity              $147,820        $ 93,940 
At September 29, 2012, total assets were $47,820 and total shareholders' equity was $31,800.
b) Working Capital is the excess of current assets over current liabilities.  It shows the amount of finance needed for meeting day-to-day operations of an entity.  Working capital measures a company's liquidity, operational efficiency, and its short-term financial health.  A healthy entity has some excess of current assets over current liabilities in order to continue to run the business operations in the short-run.  Working capital can also be measured in relative terms with the use of ratios, especially the current ratio and the acid-test ratio.
c) ROE means Return on equity.  It is a financial performance measure calculated by dividing net income by shareholders' equity.   Since shareholders' equity is equal to a company's assets minus its debt, ROE is considered as the return on net assets.  As with return on capital, a ROE measures management's ability to generate income from the equity available to it.
d) Return on Investment (ROI) is a financial performance measure which evaluates the efficiency of an investment or compares the efficiency of a number of different investments.  ROI tries to directly measure the amount of return on a particular investment, relative to the investment's cost.  As a financial metric, it measures the probability of gaining a return from an investment.