The fully loaded cost of an employee for a business is not the employee's salary.

"The fully-loaded costs of employees are much higher than their salary: exactly how much higher depends on your locality’s laws, your benefits package, and a bunch of other HR administrivia, but a reasonable guesstimate is between 150% and 200% of their salary." -https://www.kalzumeus.com/2012/01/23/salary-negotiation/