Investing can seem complex, but one of its most fundamental metrics, Return on Investment (ROI), is a simple algebraic formula.

The Formula: ROI = ( (Final Value - Initial Value) / Initial Value ) * 100%.

This is just a way to express your profit as a percentage of your original investment.

Let's break it down. 'Final Value - Initial Value' is your net profit. It's the pure amount of money you made.

Dividing that by the 'Initial Value' puts it into context. A $10 profit on a $10 investment is amazing (100% ROI). A $10 profit on a $1000 investment is tiny (1% ROI).

Algebra allows you to manipulate this formula. If you have a target ROI, you can calculate the 'Final Value' you would need to achieve.

This simple algebraic skill allows you to compare different investments on an equal footing.

Is it better to make $500 on a $2,000 investment, or $400 on a $1,500 investment?

You don't have to guess. You can use the ROI formula to calculate the precise answer.

This isn't just math; it's the fundamental logic of making smart investment decisions.