We do it a little different than most. We charge by live weight, then the buyer pays the processor. I have a scale they stand on before I load them into the trailer. we write the weight on their back in crayon, this helps us track the hanging weight and waste. I get $1.15 - $1.35 lb. live weight in north west Michigan, depending on what the finish feed total cost was for that group of hogs. I have seen a 20-30 pound difference in hogs that are the same size. We raise them to around 280-300 lbs. on good custom grain and fresh water, yumm-yumm. We had a barrow the same size as a 295 lb. gilt. When he stepped on the scale, he was 375 lbs., I know?, hanging weight was 280, we came home with 245 lbs. of sweet pork. No the scale was not broken, we confirmed it at the processors. I buy the feed by the 100, feed them by the pound, purchase fuel by the gallon, pay the electric by the kW, why not weigh them, then you know where your margin is for each hog. I'm analytical, I like to know where every dime goes so I can improve where I can.