An article is sold at a discount of 12.5%, and still there is a profit of 15%. At what approximate percentage over and above its cost price has the mark-up price of the article been fixed?

31.43%

        CP                    MP

      100 - D%           100 + P%

     100 - 12.5%           100 + 15%

         87.5                     115

He markup the article = (115 - 87.5) × \(\frac{100}{87.5}\) = 31.43%