Rajat and Shruti went to buy a new tablet for gaming. The cost of the said article was Rs. 15,700. The shopkeeper gave a discount of x% on the article after marking up the price by y%. If x is the smallest composite number that can be expressed as a sum of 4 prime numbers and y is the remainder when x is divided by the smallest 2-digit number having exactly 2 factors, then what is the profit or loss %?