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OpenStudy (anonymous):
A shop sells compact disks for $18 per piece. If each disk costs $10 to the shop owner how much profit percent does the shop owner earn?
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OpenStudy (anonymous):
profit=8(18-10) profit%=8/cp*100=8/10*100=80%
OpenStudy (anonymous):
profit%=profit/costpriceX100 therefor profit=8/10x100=80%
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