Amulti-concept restaurant incorporates two or more restaurants, typically chains, under one roof. sharing facilities reduces costs of both real estate and labor. the multi-concept restaurants typically offer a limited menu, compared with full-sized, stand-alone restaurants. for example, kmac operates a combination kentucky fried chicken (kfc)/taco bell restaurant. the food preparation areas are separate, but orders are taken at shared point-of-sale (pos) stations. if taco bell and kfc share facilities, they reduce fixed costs by 30%; however, sales in joint facilities are 20% lower than sales in two separate facilities. under what conditions would you decide to open a shared facility versus two separate facilities?