As Americans continue to struggle to make ends meet in this era of high inflation, one website is trying to help McDonald’s customers find the best deal on Big Macs in their area. McDonald’s suffered a backlash when news broke that some locations were charging up to $18 or more for a Big Mac sandwich. And costs for the nation’s biggest fast-food chain have generally been skyrocketing all across the board. But prices are often different from one McDonald’s location to another, especially since many are owned and operated by franchise owners and not the corporate headquarters. That being the cas…