The following financial information pertains to the Robinson Division of JKL Corporation for the year ended December 31, Year 6:

Robinson Division Income Statement

Description	Amount ($)
Sales revenue	590,600
Cost of goods sold	332,800
Gross margin	257,800
Operating expenses	163,200
Depreciation expense	30,400
Operating income	64,200
Nonoperating items	14,600
Loss on sale of investments	(5,300)
Net income	73,500

Robinson Division Balance Sheet

Assets	Amount ($)
Cash	45,200
Accounts receivable	105,800
Merchandise inventory	92,400
Equipment less accumulated depreciation	150,000
Total assets	393,400

Liabilities and Stockholders' Equity	Amount ($)
Accounts payable	58,700
Notes payable	27,400
Stockholders' equity	307,300
Total liabilities and stockholders' equity	393,400

Required:

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