How do supermarket firms make money - Conduct a financial ratio analysis using the below data. how do the results reflect the different pursued by the 4 firms? and what do the results suggest regarding firms in the industry delivering strong financial returns in different ways? (analysis should include gross margin %, SGA as % sales, net profit margin, asset turnover, financial leverage, ROA, debt equity ratio and ROE).

	whole foods	kroger	safeway	supervalu
revenue	$10,107,787.00	$90,374,000.00	$43,630,200.00	$36,100,000.00
COGS	$6,571,238.00	$71,494,000.00	$31,836,500.00	$28,081,000.00
gross profit	$3,536,549.00	$18,880,000.00	$11,793,700.00	$8,019,000.00
SG&A and other Expenses	$2,988,929.00	$17,602,000.00	$10,659,100.00	$8,538,000.00
Operating Income	$547,620.00	$1,278,000.00	$1,134,600.00	-$519,000.00
Net Income	$342,612.00	$602,000.00	$516,700.00	-$1,040,000.00
Total Assets	$4,292,075.00	$23,476,000.00	$15,073,600.00	$12,053,000.00
Total Liabilities	$1,300,770.00	$19,510,000.00	$11,384,500.00	$12,032,000.00
Total Equity	$2,992,305.00	$3,966,000.00	$3,689,100.00	$21,000.00