The kind of investigation to be conducted (which, for example, can be based on the level of a security clearance needed) will depend on the reason for the investigation. Different kinds of background investigations have different requirements for the scope of the investigative coverage to be obtained.
Instead of trying to measure every inch of masking tape used and every ounce of paint sprayed, auto-body shops charge a flat rate for materials. At a rate of $45 per hour on average, paint materials also contribute to the rising car bumper repair costs.
It all depends, most tattoo shops charge by the hour, $100 and hour is average but some go right up to $150 or $200. But if it is a large peice they may charge you in sessions which you would have to ask a store about.