document.write( "Question 1136489: what is the percent decrease? 0.75 to 0.3? step by step? \n" ); document.write( "
Algebra.Com's Answer #754242 by ikleyn(53763)\"\" \"About 
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document.write( "               what is the percent decrease? 0.75 to 0.3? step by step, \"highlight%28PLEASE%29\".\r\n" );
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document.write( "Technically, it is very easy.\r\n" );
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document.write( "But the key moment in solution such problems is to correctly use the base value for comparison.\r\n" );
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document.write( "If the author of the problem does want to get the precise answer, he / (or she) must point this base of comparison \r\n" );
document.write( "directly and explicitly.\r\n" );
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document.write( "If it is not pointed directly and explicitly, then the commonly accepted rule is to use the ORIGINAL value \r\n" );
document.write( "as the base for comparison BY DEFAULT.\r\n" );
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document.write( "So I will do it in this case:\r\n" );
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document.write( "    The percent of decrease is  \"%28%280.75-0.3%29%2F0.75%29%2A100\" = 60%.\r\n" );
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document.write( "In wording form :  \r\n" );
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document.write( "    a)  calculate the difference;\r\n" );
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document.write( "    b)  relate it to the original value;\r\n" );
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document.write( "    c)  multiply the ratio by 100 to get the percentage.\r\n" );
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