The selling price of an item is 20% less than its marked price. The marked price of the item is 30% more than the cost price. What is the profit percentage?

4%

Let the cost price = 1000

          CP                     MP                       SP

         100----30%P------130----20%L-----104

Profit = 104 - 100 = 4

Profit% = 4 × \(\frac{100}{100}\) = 4%