A similar measurement to biomass is meat weight. To determine meat weight, MNI is multiplied by the amount of meat an individual is thought to have provided, then multiplied by the percentage of that meat thought to be edible. This gives an estimate of “pounds of usable meat” per individual which might have been harvested by prehistoric hunters. For example, a male Wapiti has an average weight of 400 kg, and in a particular study, the MNI of Wapiti was found to be 10. This would create a biomass of 4,000 kg. If the amount of edible meat is estimated at 50 percent, this would result in a meat weight of 2,000 kg. The biggest problem with this method is the debate over “percent of usable meat.” Different views on which parts of a species are edible and which are not as well as whether or not primitive butchers would have been able to access and prepare different parts have led to controversy.