Here are simplified financial statements for Phone Corporation in a recent year:

INCOME STATEMENT
(Figures in $ millions)
Net sales	$	14,000
Cost of goods sold		4,510
Other expenses		4,212
Depreciation		2,788
Earnings before interest and taxes (EBIT)	$	2,490
Interest expense		730
Income before tax	$	1,760
Taxes (at 30%)		528
Net income	$	1,232
Dividends	$	946

BALANCE SHEET
(Figures in $ millions)
	End of Year				Start of Year
Assets
Cash and marketable securities	$	98			$	167
Receivables		2,832				2,670
Inventories		232				283
Other current assets		912				977
Total current assets	$	4,074			$	4,097
Net property, plant, and equipment		20,063				20,005
Other long-term assets		4,306				3,860
Total assets	$	28,443			$	27,962
Liabilities and shareholders equity
Payables	$	2,654			$	3,130
Short-term debt		1,464				1,618
Other current liabilities		856				832
Total current liabilities	$	4,974			$	5,580
Long-term debt and leases		4,777				5,222
Other long-term liabilities		6,268				6,239
Shareholders equity		12,424				10,921
Total liabilities and shareholders equity	$	28,443			$	27,962

Calculate the following financial ratios for Phone Corporation: (Use 365 days in a year. Do not round intermediate calculations. Round your final answers to 2 decimal places.)

Operating profit margin

Long term debt ratio (use end of year balance sheet figures)

Total debt ratio (use end of year balance sheet figures)

Times interest earned

Cash coverage ratio

Current ratio (use end of year balance sheet figures)

Quick ratio (use end of year balance sheet figures)

* Please explain briefly the process. I would really appreciate it. Thank you