document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1205637>Question 1205637</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the percent decrease from 60 to 24?<BR>\n" );
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document.write( "Answer:  <font color=red size=4>60% decrease</font>\r<BR>\n" );
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document.write( "Explanation\r<BR>\n" );
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document.write( "The formula to use is:<BR>\n" );
document.write( "percent change = 100*(b-a)/a<BR>\n" );
document.write( "where,<BR>\n" );
document.write( "a = start value<BR>\n" );
document.write( "b = end value\r<BR>\n" );
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document.write( "The b-a up top represents the change from a = 60 to b = 24<BR>\n" );
document.write( "This is a change of -36 since b-a = 24-60 = -36<BR>\n" );
document.write( "The negative result indicates a percent decrease.<BR>\n" );
document.write( "Divide this change over the original amount a = 60 to get -36/60 = -0.60\r<BR>\n" );
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document.write( "Then we multiply by 100 to convert to a percentage. <BR>\n" );
document.write( "It is equivalent to moving the decimal point 2 spots to the right.<BR>\n" );
document.write( "0.60 becomes <font color=red size=4>60%</font>\r<BR>\n" );
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document.write( "Here is the calculation in one line<BR>\n" );
document.write( "100*(b-a)/a = 100*(24-60)/60 = -60<BR>\n" );
document.write( "Then erase the negative sign and stick on a percent sign at the end. \r<BR>\n" );
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document.write( "Check:<BR>\n" );
document.write( "60% of 60 = 0.60*60 = 36<BR>\n" );
document.write( "Decreasing by 60% means we lose 36, so 60-36 = 24 which confirms we have the correct answer.\r<BR>\n" );
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document.write( "Another way to check:<BR>\n" );
document.write( "If you get a 60% discount then you pay the remaining 40%<BR>\n" );
document.write( "The start price $60 becomes 0.40*60 = 24 dollars<BR>\n" );
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