Make money. Calculated by a catty of pig's head 8 yuan, the cost of a catty of cooked pig's head meat is 8x( 1+0.7)+ rent+expenses = 15 yuan. Buy 30 yuan a catty and earn 50%. Every year in the peak season of pig's head meat sales, the sales volume and price will be higher these days. Doing pig's head meat business is a "steady profit without loss" and the profit is quite high.