If I feed store-bought pellets only [that is rare] it costs me $1.00 to $1.20/ lb [live wt] to raise rabbits. when I feed weeds, + mangles or sugar beets, ...I buy a little "concentrate", or "premix" to put in the feeders so they can eat mineral if they want. -- when feeding this way ,the price of the rabbit meat is so little it is hard to calculate .. I am weeding the garden anyway, and carry the weeds out anyway-- and I get "instant fertilizer" ready to go back into the garden. when I have rabbits I have no compost pile... yield % of meat depends on how you butcher, and if you value the pelt, - butcher loss for me is less than 25%, because I value the pelt,... without the pelt, including organ meat, and head, yield is well over 60%. -- without the head and organs, 50 to 55 percent is about what to expect from good meat stock.