I do some consulting work and have been asked to travel to a customer site several times per year over the next few years. I know the tier one consultants bill a percentage of the total contract value for "travel fees" but what is the typical amount and the high-low range?
Research indicates that between 11% - 15% is usually proposed but what is generally accepted by customers (yes, all customers are different)?
I will re-post this question in a different stack if there is a better place to put it.