Hi Carleen,
I actually just researched this recently myself. I searched online for prices of services in the UK and found 11 online nail technicians and put them into a spreadsheet.
When I worked out the average cost for each treatment it worked out as follows:
Treatment Average price
Full set of acrylic nails £29.70
Infills £18.09
Repair per nail £2.86
Nail art £5.50
Basic Manicure £12.65
Luxury Manicure £17.65
Pedicure £17.18
Luxury Pedicure £26.10
It wasn't a huge study though, I only worked out that data from the prices of 11 nail technicians who gave their prices online. I didn't record the area that each of them work in but they were all UK based. HTH.