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

### Instruction:
Liz sold her car at 80% of what she originally paid. She uses the proceeds of that sale and needs only $4,000 to buy herself a new $30,000 car. How much cheaper is her new car versus what she originally paid for her old one?

### Response:
 Ikiwa Liz anahitaji tu $4,000 kununua gari jipya lenye thamani ya $30,000, basi ana $30,000-$4,000=$<<30000-4000=26000>>26,000 kutokana na mauzo ya gari lake la zamani.
Ikiwa aliuza gari lake kwa 80% ya bei aliyolipa awali, basi aliouza kwa 80/100*$X = 0.8*$X ambapo $X ni bei aliyolipa awali.
Ikiwa aliuza gari lake kwa 0.8*$X basi aliyolipa awali ni $X=26,000/0.8 = $32,500 kwa gari lake la zamani.
Ikiwa alilipa $32,500 kwa gari lake la zamani na gari jipya ni $30,000 basi gari jipya ni $32,500-$30,000 = $<<32500-30000=2500>>2,500 bei ya chini.