It’s no surprise an increase in rates from USPS, which Amazon still relies upon heavily for last-mile delivery despite some efforts to bring that task in-house, add up to big bucks.
Should the cost increase reach the $1 billion mark, it would exceed Amazon’s quarterly profits for 10 of the last 13 quarters — though notably not the most recent three quarters in which the company posted more than $1.5 billion in profits each.