about developer price

hello sir i contact a developer to install to me omega admin theme v 2.0.0 on osclass v 3.8.0 and repair the functions and errors  tell me it cost 600 $ are that price is normal if it is not normal what is the normal price for this project ?

@Ahmed
It is definitely not OK price to install just omega theme and fix some minor issues (until there is some extra work with numerous of custom functions).
Check with dev@osclasspoint.com