In most cases, they are paid either a percentage of the overall cost of each piercing or a flat amount for each piercing.
How much do you tip a piercer. I usually tip 20% rounded to the nearest five of the piercing cost. Depends on the piercing, my labret i tipped $20 on a $75usd piercing and $60 on my pa that was $160. Piercers do a lot more than just piercing.
Something in the region of 15 to 20% of the total cost (piercing + jewelry) should be enough. I personally don't use percentages when tipping piercers. I tip my regular guy 50% of my total bill.
Tipping your piercer can be a bit more complicated. This is because jeremy is an excellent piercer and seriously professional. Tipping your piercer can be a bit more complicated.
He's done all the piercings i've. $20 for more complicated piercings or nicer. I got my rook pierced, which was $40 but the jewelry i picked was an additional $35 so i tipped $10.
If you feel like they did an extra special job, then you might want to up this to a 25 to. I'll tip $10 per simple piercing with basic jewelry.