Hanging weight is so subjective....head, hide, feet??? The price on the hoof is the the only real good judge and then pull your numbers from that. I always do ,y math backwards....I can produce market hogs about 30-33 dollars cwt using off farm feed and can cut that in half with my own grain....I will walk away from adeal happy with .45 cents a pound on a large order of market hogs and 1.00 a pound on feeders and .65 cents a pound on shoats....This is beating market and making me a nice little profit for not much work at all. I sell my crops(as pork) for triple the going rate and my investment in cash is far out running if it was left in the bank. So a small producer, I think 50 cents a pound on the hoof would be fair to you and to your consumer.
Now, for the same effort you can raise registered breeding stock and sell the same size hog for many times more.