Okay, let’s tackle this. So Donald has 20 years of experience in event planning and program management, which is a significant amount of time. However, his experience is not directly in a corporate or high-paying industry. He works in Oakland, CA, which has a relatively low cost of living. Considering his skills and experience, I would estimate his hourly rate to be around $75. This is lower than what you might expect for someone with his experience in a corporate setting, but it's also important to consider the location and the type of work he does. Some event professionals in similar roles and with similar experience might charge $100-$150 per hour, but Donald's experience working with non-profits and his specific role at the San Francisco Symphony might keep his rate lower. Let’s check averages. Event professionals with similar experience and skills might average $50-$100 per hour, so I’ll estimate around $75.