It depends on a lot of factors including but not limited to: age of company, industry, how much tribal knowledge this person possesses and estimated ramp time.

It depends on a lot of factors including but not limited to: age of company, industry, how much tribal knowledge this person possesses and estimated ramp time. As an example: a 2 year old tech company, an employee that's been around since inception and possesses a lot of quirks and random information in their head, it's going to cost the company a shit load of money.