What's the average weight in grams of a Big Mac®?

The un-cooked weight of a Big Mac® is 240g and is broken down as follows: Bun - 74g, Beef patty - 45g x 2 = 90g, Cheese -14g, Lettuce - 28g, Pickle - 2 x 3.5g =7g, Onion - 7g, Sauce - 20g. The weight of the final product will change due to the cooking process therefore we cannot declare a served weight.