Year 2				Year 1
Revenues	$	219,000			$	182,900
Expenses
Cost of goods sold		125,300				101,800
Selling expenses		20,800				18,800
General and administrative expenses		10,200				9,200
Interest expense		2,100				2,100
Income tax expense		20,900				16,800
Total expenses		179,300				148,700
Net income	$	39,700			$	34,200
Assets
Current assets
Cash	$	4,400			$	6,200
Marketable securities		2,700				2,700
Accounts receivable		36,700				31,100
Inventories		100,500				94,400
Prepaid expenses		3,400				2,400
Total current assets		147,700				136,800
Plant and equipment (net)		105,400				105,400
Intangibles		20,300				0
Total assets	$	273,400			$	242,200
Liabilities and Stockholders Equity
Liabilities
Current liabilities
Accounts payable	$	38,000			$	35,000
Other		16,500				16,900
Total current liabilities		54,500				51,900
Bonds payable		65,400				66,400
Total liabilities		119,900				118,300
Stockholders equity
Common stock (43,000 shares)		113,400				113,400
Retained earnings		40,100				10,500
Total stockholders equity		153,500				123,900
Total liabilities and stockholders equity	$	273,400			$	242,200

Required: I only need the formulas and step by step guide I can do the calculations.

a. Net margin. (Round your answers to 2 decimal places.) b. Return on investment. (Round your answers to 2 decimal places.) c. Return on equity. (Round your answers to 2 decimal places.) d. Earnings per share. (Round your answers to 2 decimal places.) e. Price-earnings ratio (market prices at the end of Year 1 and Year 2 were $6.13 and $4.79, respectively). (Round your intermediate calculations and final answers to 2 decimal places.) f. Book value per share of common stock. (Round your answers to 2 decimal places.) g. Times interest earned. (Round your answers to 2 decimal places.) h. Working capital. i. Current ratio. (Round your answers to 2 decimal places.) j. Quick (acid-test) ratio. (Round your answers to 2 decimal places.) k. Accounts receivable turnover. (Round your answers to 2 decimal places.) l. Inventory turnover. (Round your answers to 2 decimal places.) m. Debt-to-equity ratio. (Round your answers to 2 decimal places.) n. Debt-to-assets ratio. (Round your answers to the nearest whole percent.)