
LaRita W. answered 11/19/17
Tutor
4.9
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Georgia Tech Master's Level Chemist - Former SSAT Course Instructor
If article X costs $120 and is marked up at a 12% increase, we have to find the new cost of article X by finding 12% of $120 and then adding it to the cost:
$120 x 0.12 = $14.40
$120 + $14.40 = $134.40
If article Y costs $150 and is marked down to be sold at the same price as article X ($134.4), then we can wok our same steps from the previous equation, just reversed to find the percentage decrease.
To find the dollar amount article Y decreased by:
$150-$134.40 =$15.60
To find the percentage article Y decreased by:
($15.60/$150) x 100 = 10.4%