The cost price of an article is $\frac{6}{7}$ of its selling price. What will be the profit or loss percentage?

16.67% loss 14.28% profit 16.67% profit 14.28% loss

16.67% profit

Cost price of an article = $\frac{6}{7}$ of its selling price. \(\frac{SP}{CP}\) = \(\frac{6}{7}\)  Profit % = (7 - 6) × \(\frac{100}{6}\) = 16.67%