pea and ham soup, bacon hock calories?

was hoping someone could help me, im making pea and ham soup and am using a smoked bacon hock i put the whole hock into the crockpot and cook it with the soup it helps with the flavor, when the soup is cooked i keep the small amount of meat off the hock in the soup but discard into the bin, the large amount of bone and the hock skin which has the fat attached. how do i calculate the calories for the hock, bone and all it weighs 700 grams but about 80% of that is thrown away at the end, do i just count the meat that is left in the soup?