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

### Instruction:
Jackson and Brandon both invest $500 in the stock market. Jackson's investment quadruples in value, while Brandon's is reduced to 20% of the initial value. How much more money does Jackson have than Brandon now?

### Response:
 Uwekezaji wa Jackson umepanda mara nne hadi kufikia 4*500 = $2000
Uwekezaji wa Brandon umepunguzwa hadi 20% ya thamani ya awali ambayo ni 500*.2 = $<<500*.2=100>>100
Jackson ana $2000 zaidi ya Brandon