That is the right answer. I usually charge 2-5k euros to take a quick look and then, depending on what I find, I will charge 200-500 euros/hr to start working.

That is the right answer. I usually charge 2-5k euros to take a quick look and then, depending on what I find, I will charge 200-500 euros/hr to start working. Currently, human written code, mostly older php will demand the highest rate; asp/vba does a good job as well at being terribly written. Overarchitected things are usually in java/c# which I find annoying but not as hard; cobol, fortran and c/c++ are usually ok. Other things we don't really encounter besides a lot of scripts in bash and perl and tcl: usually fine ( mostly don't touch them as they work ).