Okay, so in the most extreme case the money is actually going to the employees.
My math was
the most conservative case possible, not the most extreme. It basically assumes that customers visit the parking garages at a perfect distribution throughout the day, allowing the company to operate with a skeleton staff. In reality, customers will arrive in waves during the times with more flights. Realistically, my numbers are probably at most half of what the actual costs will be, so the surcharge is probably covering about 50 - 60% of the actual increase in costs.
But what you didn't consider in your calculations is that the staff are not getting a $6/hr pay increase, they're getting an extra few cents a year.
Source, please. I couldn't find any data on what Masterpark actually pays or how many employees it has working at a time, so I assumed they were making the $9.00 minimum wage, which is a six dollar increase. With a little more digging, it turns out my original source used deceptive rounding. Minimum wage was actually $9.32 in Washington. As the valets probably get tips, I think it is a safe bet Masterpark was playing close to minimum wage.
Another problem with my numbers, I just discovered the 5th garage is self-park, not valet, so that saves a couple of hundred dollars. Of course, they also have at least 6 shuttles operating during peak times (based on photos), and at least 1 shuttle 24 hours a day. If the drivers are making less than $15.00/hour, that's going to add to their costs, too.
Not now, but starting next year. So that surcharge is 100% profit for the business.
Okay, now that is actually pretty sneaky. I didn't realize the minimum wage phases in. Unless they gave their employees raises in advance of the requirements, they should have added a .99 surcharge followed by a .99 discount for delayed implementation.