Would a high increase in vegan population to a fixed point, make meat really inexpensive for non-vegans, or would it make it more expensive? Would it stay consistent?

Disclaimer: I don't know much about economics.

Assuming the vegan population increases drastically, the demand for meat would decrease too, making it cheaper. But then I assume cattle ranchers would stop rearing cattle as they won't be getting the same prices, decreasing the supply, increasing prices again? Will it reach equilibrium? Would that be more or less expensive than today's prices?

So, does the percentage of meat eaters not matter? Let's say vegan population increase to such as much 70% of the total population( assuming vegans don't do anything drastic like banning meat by taking advantage of their numbers), would that make any difference? Can they be cheaper like potatoes? I know raising cattle takes a lot of time, money and equipment unlike potatoes, but is that the only factor?