Sales among lower-income diners fell by “nearly double digits” last quarter, as higher prices drive them toward cheaper grocery staples and rival deals. The results are in. McDonald’s latest earnings report sheds light on the growing divide among U.S. consumers—as the wealthiest Americans continue to spend and eat out—while lower income families are making less trips to the Golden Arches as they battle the rising cost of living, skyrocketing food prices, grocery inflation, and stagnate wages.