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

### Instruction:
 John ananunua kifaa cha kusafisha nyumba kwa $250 na mashine ya kuosha vyombo kwa $450. Ana kupon ya punguzo la $75. Amejitumia kiasi gani?


### Response:
 Bei ya jumla ilikuwa 250+450=$<<250+450=700>>700
Hivyo alilipa 700-75=$<<700-75=625>>625