FedEx Express had 239,000 employees at the end of FY 2019, and 245,000 at the end of FY 2020.UPS handles more than double the volume of packages that FedEx does, with an average daily rate of approximately 15.8 million units; FedEx delivered 6.9 million units.
You think there just might be a correlation between volume and employee compensation?
How many UPS employees are there in the US?
444,000