Refer to the graph and answer the given questions.
Data related to number of bags sold by two stores (M and N) during 5 years :
Number of bags sold by store M in 2008 = $$320$$
Number of bags sold by store M in 2012 = $$260$$
% decrease = $$\frac{320-260}{320}*100$$
= $$\frac{60}{320}*100$$
= $$18\frac{3}{4}$$%
Option A is the right answer.
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