What is the profit margin in a supermarket?

Communist Zohran Mamdami proposed city run grocery stores in New York City. The ides is that the city could run their grocery stores more efficiently and can sell goods cheaper than the supermarkets. When did the government ever run anything more effectively?

50%
60%
10%
5%
3%
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Updates
11 mo
The cior3ect answer is 3 percent.
What is the profit margin in a supermarket?
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