Answer:
80%
Explanation:
The original cost per front-foot was ...
$25000/150 = $500/3
The percentage profit relative to the initial investment is ...
profit percent = ((new value)/(old value) -1) × 100%
profit percent = (300/(500/3) -1)×100% = (9/5 -1)×100% = 80%
Speculator made 80% profit on the investment.