If the cost price is 95% of the selling price, what is the profit percent = ?

According to the question,
$$\eqalign{ & {\text{C}}{\text{.P}}{\text{.}} = \frac{{95}}{{100}}{\text{S}}{\text{.P}}{\text{.}} \cr & \frac{{{\text{C}}{\text{.P}}}}{{{\text{S}}{\text{.P}}{\text{.}}}}{\text{ = }}\frac{{95}}{{100}}{\text{ = }}\left. {\frac{{19}}{{20}}} \right\rangle {\text{1 unit profit}} \cr & {\text{Profit }}\% = \frac{1}{{19}} \times 100 \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 5.26\% {\text{ }} \cr} $$