A shopkeeper purchased 83 dozens of articles at the rate of ₹560 per dozen. He sold each one of them at the rate of ₹49. What percentage profit did he make?

A shopkeeper purchased 83 dozens of articles at the rate of ₹560 per dozen. He sold each one of them at the rate of ₹49. What percentage profit did he make?
एक दुकानदार ने 83 दर्जन वस्तुएँ ₹560 प्रति दर्जन की दर से खरीदीं। उसने प्रत्येक वस्तु को ₹49 की दर से बेच दिया। उसे कितने प्रतिशत लाभ हुआ?

3% 7% 8% 5%