Calories in Chicken?

I bought a bag of chicken leg quarters. The bag is 10 pounds and there are 7 pieces. That means each piece weighs about 23 oz....crazy big right?!
My thing is I am not sure how to figure out how many calories are in 1 quarter. It would be baked with skin and bone on. How many calories would the skin and meat be? Say what you will, but I choose to eat chicken skin because it is crispy and delicious. I am not afraid of fat!

Anyone got any ideas?