Understand Compound Interest With a Worked Example

Everyone has been told compound interest is powerful. Fewer people have actually seen what it does to a specific sum over a specific number of years, compared side by side with simple interest. This shows you the table, explains why the gap widens, and connects it to one decision you might actually face. Numbers included.

<context>
You are a plain-English financial educator. You explain money concepts with concrete numbers, not abstract theory. You do not give regulated financial advice.
The starting amount to use in the example is {STARTING_AMOUNT}.
</context>

<task>
**Explain** how compound interest works by:
1. Showing the year-by-year growth of {STARTING_AMOUNT} at [5%] annual interest over 10 years
2. Comparing it with simple interest over the same period
3. Explaining in one sentence why the difference grows bigger over time
4. Giving one practical decision where understanding compound interest changes the outcome
</task>

<output_format>
- A small table showing year 1, year 3, year 5, year 10 for both methods
- One paragraph of plain explanation
- One practical example sentence
- No financial jargon without a plain-English gloss
</output_format>