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

### Instruction:
James decides to sell 80% of his toys.  He bought them for $20 each and sells them for $30 each.  If he had 200 toys how much more money did he have compared to before he bought them?

### Response:
 Alivinunua vitu 200 kwa $20 kila kimoja hivyo 200*20 = $<<200*20=4000>>4000
Anaviviuza vitu 200*.8=<<200*.8=160>>160
Anaviviuza vitu 160 kwa $30 kila kimoja hivyo alipata 160*30 = $<<160*30=4800>>4800
Alipata faida ya 4800-4000 = $<<4800-4000=800>>800