If a seller gives a discount of 15% on retail price, she still makes a profit of 2%. Which of the following ensures that she makes a profit of 20%?
Sell at retail price
Let the cost price be Rs. 100
Then selling price =100+(2100)×100=Rs.102
Retail price = (102×100)85=Rs.120
Now for 20% profit to be realised,
Clearly, the seller has to sell the item at retail price.