Hair extension prices and time

[Mermaid girl]

Hello everyone I just wanted to know if anyone does nano rings and do you charge more money then micro ring application, because I think I'm under charging my customers as it takes me a lot longer to do this process.
Also when doing a maintenance how much does everyone charge?
My last two took me 2 hours refit 2hours maintence I would say this should only be 2 hours max

 

[cmsuper]

I charge the same.It only takes me a little bit longer to fit nanos.