It really depends on where you rent your stall and if you are
the original owner of that stall.
Take my cousin who sell Rojak as an example. When his father first
rented the stall at a hawker center 30 years ago, it cost less than
a couple of hundred. They have sold rojak until today, and although
the rental cost has raised considerably, it still hadn't hit the
couple of thousand dollar mark.
Mine expensive, cuz coffee shop.