DuRan, I will weigh in, since you have not found any help yet. In WV, it runs from $79 to $99, and includes a basic run through and basic service of your system, like cleaning the condenser and the AC coil. I would imagine that would be the cost in your area as well. Give a licensed and insured contractor in your area a call.
Just to give you a idea, in Massachusetts it would run you from $150 - $200 depending on where in MA your located, But we are generally more expensive up here in the north.
I’m sure NC is probably much cheaper.