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

### Instruction:
 Kuna mauzo mtandaoni ambapo unapata $10 kwa kila $100 unazotumia. Ikiwa unafanya ununuzi wa $250 kabla ya punguzo, ulilipa kiasi gani mwishowe?


### Response:
 Ikiwa kwa kila $100 ninayotumia ninaokoa $10, basi kwa $250 niliyotumia nitapata $10*2=$20
Ikiwa jumla yangu ilikuwa $250, basi mwishowe nililipa $250-$20=$<<250-20=230>>230