Pricing is approximate based on weight at $28.99/LB WHOLE BONELESS PRIME RIB ROAST APPX. 10-12 LBS EACH BUT CAN BE CUSTOMIZED TO YOUR NEEDS. THE RECOMMENDED SERVING SIZE FOR AN ADULT IS 12-14 OZS WHICH IS A GENEROUS SERVING. IF YOU ARE UNCERTAIN AS TO WHAT SIZE NEEDED,YOU CAN SIMPLY STATE IN THE NOTES SECTION HOW MANY ADULTS AND CHILDREN YOU ARE FEEDING,  WANT LEFTOVERS, ETC. THE BUTCHER WILL CUSTOMIZE THE SIZE ACCORDING TO YOUR SPECIFIC NEEDS. EX: "I WOULD LIKE A BONELESS PRIME RIB ROAST LARGE ENOUGH TO FEED 8 ADULTS AND 6 CHILDREN, AND WE WOULD LIKE LEFTOVERS." Don't forget to add some of some of our Bill's Blend All Purpose Seasoning and our freshly made horseradish sauce at check out as the perfect accompaniments for an elegant dinner with loved ones!