When you are planning an event or a family meal, catering too much or too little can always be a concern.
Have peace of mind, apply this SIMPLE EQUATION calculated from historical data worldwide:
260 grams / 9 OZ raw product per individual
(*) Applies to all pieces of meat
Also is important to bear in mind that when ordering Bone-In, Boneless Roasts, please be aware that as a natural product the diameter of the piece can vary which will affect the size of the final cut