document.write( "Question 163971: Please help me with this problem. Find the percent of change in price if the old selling price was $20 and the new selling price is $15. \n" ); document.write( "
Algebra.Com's Answer #120812 by nerdybill(7384)\"\" \"About 
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Please help me with this problem. Find the percent of change in price if the old selling price was $20 and the new selling price is $15.
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\n" ); document.write( "15/20 * 100 = 0.75 * 100 = 75%
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\n" ); document.write( "So, you could think of it as:
\n" ); document.write( "75% of the original price
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