As a service entrepreneur, you need to determine the correct fees to charge your clients. This calculation is trickier than it may appear. Although to be successful, you must look to ways to leverage time, minutes and hours often remain as the most significant component of your “inventory.” And unlike the local hardware store that can simply order more faucet washers when supplies run low, there is only so much time you can sell. Therefore, maximizing revenue from that time, achieved by matching rates to a desired number of clients, is key. Here are five ways to help determine the right amount to charge for your services.