Okay, let’s calculate this. So David has a broad skill set, including strategy, healthcare, and start-ups. He also has leadership and marketing skills, which are valuable in many industries. Location is Belmont, MA, which is a suburban area with a strong economy. Average salaries for executives with similar skills in the Boston area are around $100–$150 per hour. Considering David’s experience and skills, I’d estimate his rate to be on the higher end of that range, around $125 per hour.