document.write( "Question 503855: How do I set up this problem, there were 1.388 millions childcare workers in 2006. The number of job opportunities in that fieldis expected to grow to 1.636 million by 2016. What is the percent of increase? \n" ); document.write( "

Algebra.Com's Answer #852308 by ikleyn(52866) $\"\"$ $\"About$

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\n" ); document.write( "How do I set up this problem, there were 1.388 millions childcare workers in 2006.
\n" ); document.write( "The number of job opportunities in that field is expected to grow to 1.636 million by 2016.
\n" ); document.write( "What is the percent of increase?
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\n" ); document.write( "\n" ); document.write( " Tutor @Theo incorrectly reads the problem and incorrectly treats it.\r
\n" ); document.write( "\n" ); document.write( " His solution is irrelevant, and his answer is incorrect.\r
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document.write( "They ask about the percentage of change between the new value and the old value.\r\n" );
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document.write( "The standard formula for it is\r\n" );
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document.write( "                             new value - old value\r\n" );
document.write( "    the percent of change = ------------------------ x 100.\r\n" );
document.write( "                                old value\r\n" );
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document.write( "As we apply it with the numbers, we get\r\n" );
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document.write( "    the percent of change =   = 17.867  (approximately).\r\n" );
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document.write( "What you need to know:\r\n" );
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document.write( "    (a)  if not said explicitly, divide by the old value, by default;\r\n" );
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document.write( "    (b)  multiply the ratio by 100 to transform the ratio's value to the percentage value.\r\n" );
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