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

### Instruction:
You start a business selling charm bracelets. You spend $1 on the string for each bracelet and $3 on beads for each bracelet. You sell the bracelets for $6 each. If you sell 25 bracelets, how much profit will you make?

### Response:
 ต้นทุนในการทำสร้อยคอหนึ่งเส้นคือ $1 + $3 = $<<1+3=4>>4
ต้นทุนทั้งหมดคือ 25 * $4 = $<<25*4=100>>100
รายได้ทั้งหมดคือ 25 * $6 = $<<25*6=150>>150
กำไรทั้งหมดคือ $150 - $100 = $<<150-100=50>>50