Answer
75%
Work Step by Step
Percent are generally used for making a comparison in the changes. If there occurs a change in the quantity, then the percent increase or decrease is calculated. Compute the percent increase in investment using the equation as shown below:
\[\begin{align}
& \text{Percent increase in investment}=\frac{\text{Amount of Increase}}{\text{Original amount}} \\
& =\frac{\$3500-\$2000}{\$2000}=\frac{\$1500}{\$2000}\\&=0.75\\&=75 percent\end{align}\]