The cost price and the selling price of a shirt are ₹960 and ₹1392 respectively. If by way of bargaining a customer can bring the selling price down by 10% of the cost price, then what is the profit percentage?

35%

Cost price      :     Selling price

960      :      1392

                    ⇓×10% down of CP ( 1392 - 96 = 1296)

960              1296

Profit % = (1296 - 960) × \(\frac{100}{960}\) = 35%