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

### Instruction:
Mike wants to buy a new phone. The cost of the phone is $1300. How much more money does Mike need if he already has 40% of the amount he needs?

### Response:
 Ikiwa Mike tayari ana 40% ya kiasi anachohitaji, ana $1300 * 0.4 = $<<1300*0.4=520>>520.
Hii inamaanisha Mike anahitaji $1300 - $520 = $<<1300-520=780>>780 zaidi.