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

### Instruction:
There were 600 cookies in a box. Nicole ate 2/5 of the total number of cookies, while Eduardo ate 3/5 of the remaining amount. What percentage of the original cookies remained?

### Response:
 Kulikuwa na mikate 600 x 2/5 = <<600*2/5=240>>240 iliyosalia baada ya Nicole kula.
Kulikuwa na mikate 240 x 3/5 = <<240*3/5=144>>144 iliyosalia baada ya Eduardo kula.
Hivyo, 144/600 x 100% = 24% ya mikate ya awali ilisalia.