1. The price of a whole salmon is 600 yuan per catty, which is 60 yuan per catty.
2. Salmon is skinned and boned, and only sashimi is sold from 100 to 120 per catty.
3. In supermarkets, the price of salmon sashimi ranges from 120 to 140 yuan per catty, and some supermarkets even sell it at the price of 180 yuan per catty.