DULUTH, Ga.–(BUSINESS WIRE)–The latest Primerica Household Budget Index™ (HBI™) data, a monthly economic metric that examines how inflation and wage trends impact the ability of middle-income families to afford life’s everyday necessities, is estimated at 100.5% in July, an increase of 0.4% from June and also up 0.4% from a year ago. Lower gas prices for the second consecutive month provided modest relief for middle-income budgets. In addition, average earned income rose 0.2% month-over-month