How much do you pay a Sherpa?

Excuse me, I'm curious about the financial aspect of hiring a Sherpa for a mountain expedition. Could you please elaborate on the typical cost range one might expect to pay for the services of a Sherpa? Are there any factors that significantly influence the pricing, such as the difficulty of the climb, the duration of the expedition, or the Sherpa's experience and reputation? Additionally, are there any additional expenses or considerations that one should be aware of when budgeting for a Sherpa's services?