Question

The price of a notebook has dropped to

$3.10

today. Yesterday's price was
$3.35
. Find the percentage decrease. Round your answer to the nearest tenth of a percent.

Answer 1

Always find the difference in prices first.
3.45 - 3.20 = $.25 difference

Always divide the difference by the original price. Change this number into a per cent.
.25/3.45 = .07246 = 7.2% decrease <==ANSWER

I hope that helps!! :-)

Answer 2

%change=100(final-initial)/initial

%change=100(3.1-3.35)/3.35= -7.5%