We know that the profit of store A increases from $$20 \%$$ to $$24 \%$$ whereas the profit of store B decreases from $$24 \%$$ to $$20 \%$$; we need to compare the percentage increase in the profit of store A with the percentage decrease in the profit of store B.

Since the profit of store A increases from $$20 \%$$ to $$24 \%$$, the ratio of their original profit to the new profit is $$20: 24=5: 6$$, so the percentage increase in its profit is $$\frac{6-5}{5} \times 100=\frac{1}{5} \times 100=20 \%$$

Similarly the ratio of the original profit to the new profit of store B is $$24: 20=6: 5$$, so the percentage decrease in its profit is $$\frac{5-6}{6} \times 100=-\frac{1}{6} \times 100=-16.66 \%$$ i.e. a decrease of $16.66\%$.

Hence column A quantity is greater than column B , so the answer is $$(\mathrm{A})$$.