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

### Instruction:
To run his grocery store, Mr. Haj needs $4000 a day. This money is used to pay for orders done, delivery costs and employees' salaries. If he spends 2/5 of the total operation costs on employees' salary and 1/4 of the remaining amount on delivery costs, how much money does he pay for the orders done?

### Response:
 Jumla ya gharama ya mishahara ni 2/5*4000 = $<<2/5*4000=1600>>1600.
Baada ya kulipa mishahara, Mr. Haj anabaki na $4000-$1600 = $<<4000-1600=2400>>2400.
Pia anatumia 1/4*$2400 = $<<1/4*2400=600>>600 kwa gharama za usafirishaji.
Kiasi kilichobaki cha pesa anachotumia kulipa maagizo ni $2400-$600 = $<<2400-600=1800>>1800.