Read the following table carefully to answer the given questions.
The number of Samsung mobile phones store by store D is by what percent more than the number of mobile phones of same brand sold by store A ?
Number of Samsung mobile phones store by store D = 1740
Number of Samsung mobile phones store by store A = 1450
=> Required % = $$\frac{1740 - 1450}{1450} \times 100$$
= $$\frac{2900}{145} = 20$$%
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