The marked price of an article is 30% more than the cost price. A discount of 15% is offered on the marked price. By what percentage is the final price more than the cost price?

10.5%

        CP                    MP

      100 - D%           100 + P%

     100 - 15%           100 + x%

         85                   100 + x%

\(\frac{10}{13}\) = \(\frac{85}{100 + x%}\) 

(100 + x%) = 110.5

x% = 10.5%