How many ppc require to make a 51% attack

Such double spending attack might be profitable for ppl that think there s more to earn short term in cheating the coin than in waiting longterm to see the coin success.

Right. Forgot about the freez after the stake which is another barrier for capitalists

Do you see a buyside that can take that amount of PPC? If not by double spending, how can you earn short term? I only see a lot of money at stake.

There are that amount probably in addresses or walkets from pools and exchanges

But not on all order books of all exchanges combined at a good rate.
If you want to pull off a double spend attack for x coins, you should have buy side for 2x.
Can you please describe your attack scenario in more depth?