A dealer marks his goods at 20% above the cost price and allows a discount of 15%. What is his gain percentage?

Marked Price = 20% above the Cost Price

Discount = 15%

Formula Used: ​

​$$\frac{\text{ CP}}{\text{MP}} = \frac{100 - D}{100 + P}$$​​

where, CP = cost price, MP = marked price,

 D = discount percentage

P = profit percentage

Let Cost price, CP = 100 

than, Marked Price, MP = 120 

​