Health care costs will be lowered as well. Amazon announced it will be making a $1 billion investment to raise wages and lower the cost of health care for its U.S. fulfillment and transportation workers. Full-time employees will see their pay increase by about $1,600 per year on average. Lower health care costsDig deeper:Amazon also said it would be lowering the cost off its entry health care plan to $5 per week and $5 co-pays starting next year. Starting wages had previously ranged between $12 and $18 an hour, depending on location.