hello i made a new nutak account to figer out how many times i coud upgrade my stats per level, and how far behind i was.
my main acount is in level 52, and its starting to get quite expensiv to upgrade my stats, and i cudent finde a end to it.

so my conclution was that you can upgrade 40 times per level, and you have a basic pric of 5 and an incrise of 2 per level.
a easy formula for your last upgrae at your level is: (2x * 40 + 5)= price

make not, i only tried every level up to 6, so idk if the system changes further down the line.