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

### Instruction:
The price of a monster box of cereal is reduced by $24 after an oversupply in the market. If the initial price was $104, and Romina bought 20 of such boxes, calculate the total price she paid.

### Response:
 ราคาที่ลดลงของกล่องคือ $104-$24 = $<<104-24=80>>80
ราคารวมคือ 20*80 = $<<20*80=1600>>1600