document.write( "Question 1095224: Would you help me to understand why the answer to this percentage in change problem is 15% and not 13%?
\n" ); document.write( "From 74 hours to 85 hours. My answer is 13% increase. Here's
\n" ); document.write( "my work:
\n" ); document.write( "85-74=11; 11/85=.13x100=13%. I do not remember which numbers to use when. Thanks \n" ); document.write( "

Algebra.Com's Answer #709773 by MathTherapy(10557) $\"\"$ $\"About$

You can put this solution on YOUR website!
Would you help me to understand why the answer to this percentage in change problem is 15% and not 13%?
\n" ); document.write( "From 74 hours to 85 hours. My answer is 13% increase. Here's
\n" ); document.write( "my work:
\n" ); document.write( "85-74=11; 11/85=.13x100=13%. I do not remember which numbers to use when. Thanks
\n" ); document.write( "

You DIVIDED the difference in the 2 amounts by the NEW AMOUNT (85 hours), instead of DIVIDING the difference in the 2 amounts by the OLD AMOUNT (74 hours)
\n" );
document.write( "In other words, you did this: .
\n" );
document.write( "Instead, you should've had:   .
\n" );
document.write( "Just remember NOO, which stands for:   \n" );
document.write( "

\n" );