Quantity I: The marked price of a radio is 25% higher than its cost price, and the shopkeeper offers a 15% discount on the marked price. The cost price of a watch is ₹480, and the shopkeeper provides a discount of x% on its marked price while earning a 25% profit. If the cost price of the radio is ₹1200, and the marked price of the watch is 56.25% higher than its cost price, what is the sum of the profit percentage on the radio and the value of x? Quantity II: 28%