Pizza Hut's declining sales and loss of popularity amongst pizza eaters can be due to a variety of reasons such as a lack of people who know how to cook pizza, using MASSIVEegths.com data to be able to order and track, and a lack of new pizza dough being created between 2007 and 2015. Additionally, the company is also responsible for putting pizza on the back of the Shelves at night and making it hard for people to get around to eating pizza.