Start with 6% for fees and then add or subtract depending on how good of deal you came in with. If you purchased the house a under market via short sale etc... you may be OK. The other side of the picture is that you understand you are not going to make money and are not emotionally attached, so doing a short sale would mean you would only lose (part of) your down payment. Depending on what you put down.
There are many scenarios, like renting the home out, that would also work depending on your goals.
My advice would be to speak with a trusted Realtor and make a plan.