The restaurant chain saw same-store sales drop just as expansion plans kicked into gear.Portillo's (PTLO -0.89%) has big growth plans as it expands in the Sun Belt. But as those restaurants are built, the company is seeing sales at existing stores slip. Travis Hoium digs into what's going on at Portillo's and in the restaurant industry broadly in 2024.*Stock prices used were end-of-day prices of Nov. 5, 2024. The video was published on Nov. 5, 2024. ...