document.write( "Question 288383: ComputerTown’s sales revenue was $100,000 in May, while its cost of sales was $70,000. What was its gross margin in dollars? What was its gross margin as a percentage? Explain.\r
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Algebra.Com's Answer #209059 by checkley77(12844)\"\" \"About 
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His gross margin was:
\n" ); document.write( " 100,000-70,000=$30,000.
\n" ); document.write( "His % of gross margine was:
\n" ); document.write( "(100,000-70,000)/100,000
\n" ); document.write( "30,000/100,000=.30 or 30%.
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