One catty of crispy pork belly can be roasted with six or two crispy barbecued pork, and 10 catty is 6 catty of crispy barbecued pork.

The current market price of pork belly is 17 yuan per catty, and the crispy skin processing can be directly sold to 40 yuan, which means that the cost is 17* 10= 170 yuan, and the profit is 6 * 40- 170 =.