Selling price of an article is $\frac{8}{7}$ of cost price. What is the profit percentage?

$\frac{100}{9}$ $\frac{100}{11}$ $\frac{100}{8}$ $\frac{100}{7}$

$\frac{100}{7}$

Selling price of an article is $\frac{8}{7}$ of cost price, \(\frac{SP}{CP}\) = \(\frac{8}{7}\)  Profit = 1 Profit% = \(\frac{1 × 100}{7}\) = \(\frac{100}{7}\)%