That would be for dismount/mount of all 8 including balancing. It sounds like a lot but when you break it down per tire it's $25 per. This shop is the only one I have ever seen use the plastic ring that goes all the way around the lip of the wheel, instead of using just the little plastic attachments on the tire machine itself (that always seem to fall off.)
A while back I took a brand new set of wheels for my old truck to NTB and straight out of the box the guy went to lay it face-first into the bare metal claws of the rim clamp machine. I almost dropped the wheel I had in my hand running over to stop him...in my calmest tone possible I had a discussion with him about not destroying my wheels by changing his approach and he looked at me like I was from fuggin Mars. We got it done but I'll never go back there again.