I just read the grape "studio" charges $20 a song -thread that got bashed a lot because that kind of action distorts the competition. I was watching Finnish Musicians Union taxrate list (in finnish, pdf) just noticed I have been accidentally charging for the past few years almost about the "the bandcontact person" salary (being the technical contact for most of the bands I have mixed), which is 121,09€ per day and I have charged 100€ + travel expenses in the past few years, which usually totals very close to that amount. In the same list studiowork is listed at 31,64€/h or minimum of 149,58€ per day. So the question is, how much do you charge?