The ratchet in action. You can bet when the permits were introduced, the supporters emphasized that the fees were trivial and could easily be afforded by anyone. This is why any permit or registration system should be rejected.
"The plan would raise the cost for handgun purchase permits from $2 to $50; firearms identification cards from $5 to $100; handgun carry permits from $50 to $400; retail gun dealer licenses from $50 to $500; and wholesaler/manufacturer licenses from $150 to $1,500, among other hikes.
...
In some cases, the changes would nearly double the cost of purchasing a firearm, some of which retail for less than $200."
https://www.nj.com/politics/index.ssf/2018/06/murphy_wants_to_make_it_more_expensive_to_buy.html
"The plan would raise the cost for handgun purchase permits from $2 to $50; firearms identification cards from $5 to $100; handgun carry permits from $50 to $400; retail gun dealer licenses from $50 to $500; and wholesaler/manufacturer licenses from $150 to $1,500, among other hikes.
...
In some cases, the changes would nearly double the cost of purchasing a firearm, some of which retail for less than $200."
https://www.nj.com/politics/index.ssf/2018/06/murphy_wants_to_make_it_more_expensive_to_buy.html