There are no specific prices on tattooing. The individual artist can charge whatever he/she feels fit for their work.
In my experience, the average range is a 50-60 minimum price while an hourly wage on top of the minimum.
The size and placement always has an effect on price. The larger it is, the more expensive, the more detail, the more expensive, the more color and ink it takes, the more expensive, etc...
You will have to call shops in your area and inquire.