That will definitely depend on where you go to get it done, but I paid $55 for mine, jewelry included.
They cost around anywhere from $30-50 depending on the place u got it done
Look up local shops near you, my Monroe piercing cost $45, but my sister's bottom lip costed $55, because they are popular! Sometimes there are sales and stuff one piercing shop was piercing people for free!
I've got a great solution to your quandary: CALL THEM and ASK.
That would vary based on the piercing shop.
You're going to have to call the shop. Each shop can have different prices and it also depends on the jewelry you pick.
You're piercing your back?
It depends on where you go. The cost of any piercing varies from place to place. I would recommend to do some shopping round.
The piercing fees would not change regardless of what you have, there are costs to providing services and these need to be covered.
That would depend on where you go, and who you go with to discuss the price.
Check with your local piercing parlor?
Depends on were you live and were you go but I would consider asking the guy doing the piercing befor you get your neck pierced: )