Rising food prices and a shift towards eating at home have led to declining sales for several fast food chains. KFC, Eegee's, BurgerFi, Firehouse Subs, Papa John's, Popeyes, and Burger King are all facing significant struggles. Factors such as outsized exposure in certain markets, bankruptcy filings, declining financial performance, and a lack of value menu options have contributed to the decline in sales for these beloved chains.