Whole Foods		Kroger		Safeway		Supervalu
Net Profit Margin	0.339		0.007		0.012		-0.0288
Asset Turnover	2.355		3.850		2.894		2.9951
Financial Leverage	1.435		5.919		4.086		573.9524
Return on Equity	1.145		0.152		0.140		-49.5238

Please explain how the financials reflect the different strategies of the players in separate explanations.