The following financial details are provided for the Martin Division of VWX Corporation for the year ended December 31, Year 10:

Martin Division Income Statement

Description	Amount ($)
Sales revenue	910,600
Cost of goods sold	503,900
Gross margin	406,700
Operating expenses	228,600
Depreciation expense	50,000
Operating income	128,100
Nonoperating items	26,800
Loss on sale of equipment	(9,100)
Net income	145,800

Martin Division Balance Sheet

Assets	Amount ($)
Cash	72,300
Accounts receivable	190,800
Merchandise inventory	160,300
Equipment less accumulated depreciation	250,000
Total assets	673,400

Liabilities and Stockholders' Equity	Amount ($)
Accounts payable	110,200
Notes payable	53,400
Stockholders' equity	509,800
Total liabilities and stockholders' equity	673,400

Required:

1. Calculate the gross margin ratio for Martin Division.
2. Determine the return on assets (ROA) for Martin Division.
3. Compute the current ratio for Martin Division.
4. Evaluate the debt to equity ratio for Martin Division.
5. Assess the Martin Division’s operating margin.