Think one person could eat 50 oz (3 lbs+) of meat in one sitting? Wonder how big the bone is...
And since higher quality meats have a higher fat content (35% to 65%) - and fat weights less than meat... and since it's a printed menu and meat cuts vary etc. and fat drips out in grilling. And the steak would be dry aged...evaporating more weight. I'm guessing someone gets the 'three pounder' and is amazed it so much smaller than they thought it would be.