1. The following summarized data (amounts in millions) are taken from the September 26, 2020, and September 28, 2019, comparative financial statements of Apple Incorporated, a company that designs, manufactures, and markets mobile communication and media devices and personal computers; sells a variety of related software, services, accessories, networking solutions, and offers third-party digital content and applications:

For the Fiscal Years Ended September 26 and September 28, respectively: (Amounts expressed in millions)
	2020	2019
Net Sales Costs of Sales	$ 274,515 169,559	$ 260,174 161,782
Operating Income	66,288	63,930
Net Income	$ 57,411	$ 55,256
At Year-End: Assets
Current Assets:
Cash & Cash Equivalents	$ 38,016	$ 48,844
Short-Term Marketable Securities	52,927	51,713
Accounts Receivable, Net	16,120	22,926
Inventories	4,061	4,106
Vendor Non-Trade Receivables	21,325	22,878
Other Current Assets	11,264	12,352
Total Current Assets	$ 143,713	$ 162,819
Noncurrent Assets:
Long-Term Marketable Securities	$ 100,887	$ 105,341
Property, Plant, & Equipment, Net	36,766	37,378
Other Noncurrent Assets	42,522	32,978
Total Noncurrent Assets	$ 180,175	$ 175,697
Total Assets	$ 323,888	$ 338,516
Liabilities & Shareholders Equity
Current Liabilities:
Accounts Payable	$ 42,296	$ 46,236
Other Current Liabilities	42,684	37,720
Deferred Revenue	6,643	5,522
Commercial Paper	4,996	5,980
Current Portion of Term Debt	8,773	10,260
Total Current Liabilities	$ 105,392	$ 105,718
Noncurrent liabilities:
Noncurrent Portion of Term Debt	$ 98,667	$ 91,807
Other Noncurrent Liabilities	54,490	50,503
Total Noncurrent Liabilities	$ 153,157	$ 142,310
Total Liabilities	$ 258,549	$ 248,028
Shareholders Equity:
Common stock and additional paid-in capital, $0.00001 par value: 50,400,000 shares authorized; 16,976,763 and 17,772,945 shares issued and outstanding, respectively	50,779	45,174
Retained Earnings	14,966	45,898
Accumulated Other Comprehensive Income / (Loss)	-406	-584
Total Shareholders Equity	$ 65,339	$ 90,488
Total Liabilities & Shareholders Equity	$ 323,888	$ 338,516

On September 29, 2018, total assets were $365,725, and total shareholders equity was $107,147.

Required:

1. Calculate Apple Incorporateds working capital, current ratio, and acid-test ratio on September 26, 2020, and September 28, 2019.
2. Calculate Apples ROE for the years ended September 26, 2020, and September 28, 2019.
3. Calculate Apples ROI, showing margin and turnover, for the years ended September 26, 2020, and September 28, 2019.

	2020	2019
Working Capital	$ 38,321	$ 57,101
Current Ratio	1.36	1.54
Acid-Test Ratio	?	?

	2020	2021
ROE	73.7%	55.9%

	2020	2019
ROI	17.4%	15.7%
Margin	?	?
Turnover	?	?