document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=27559>Question 27559</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A bookstore buys a used calculus book for $12.00 and sells it for $40.00.  Find the percent of markup.\r<BR>\n" );
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document.write( "I know the profit was $28.00, but I can't figure out the formula to find the percentage of the markup.  Help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #14994 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=14994\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> any sort of question like this always is based upon the ORIGINAL value!\r<BR>\n" );
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document.write( "so, we have (increase/original)*100<BR>\n" );
document.write( "--> (28/12)*100<BR>\n" );
document.write( "--> (7/3)*100<BR>\n" );
document.write( "--> 233.33%\r<BR>\n" );
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document.write( "in other words, it is more than twice the original price, which is correct: original being 12...twice this is 36...40 is just over that, by a further $4 which is one-third of 12...hence the meaning of 200%+33.33%\r<BR>\n" );
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document.write( "jon.<BR>\n" );
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