Below is an instruction that describes a task. Write a response that appropriately completes the request in Thai. Please answer in Thai.

### Instruction:
Romeo buys five bars of chocolate at $5 each and sells these chocolates for a total of $90. If he uses packaging material that costs him $2 for each bar of chocolate, how much profit does he make for all the chocolates he sells?

### Response:
 ราคาขายสำหรับแต่ละแท่งช็อกโกแลตคือ 90/5=$<<90/5=18>>18.
กำไรสำหรับแต่ละแท่งช็อกโกแลตคือ 18-5-2=$<<18-5-2=11>>11.
กำไรรวมคือ 11*5=$<<11*5=55>>55.