Aiya, different shop got different price, not like all the prata
and tea the same.
Prawn noodles also have different prices, one shop at my place
selling at $2.50 while another shop sell at $3.00.
Some chicken rice cost $3.30 while others cost $2.00.
How to compare? They are different.
Sometimes rental for shop also different, some place more
expensive, some place cheaper.
If you are price sensitive, you should ask the price first before
you order. Price differences of $0.50 and $1.00 between different
hawkers are common.