Percentage Calculator

**Introduction:**
The Percentage Calculator is a versatile tool designed to simplify the process of calculating percentages in various scenarios. Whether you're determining the percentage of a total, finding the percentage difference between two numbers, or calculating what percentage one number is of another, this calculator is an invaluable resource for students, professionals, and everyday users alike.

**Demonstration:**
For example, if you want to find out what 20% of 150 is, you simply enter 20 in the percentage field and 150 in the number field. The calculator will instantly display the result, which is 30. Similarly, if you have two numbers, say 80 and 100, and you want to know the percentage increase, input these numbers and the calculator will show that there is a 25% increase.

**Usage:**
Using the Percentage Calculator is straightforward:
1. Enter the required values into the appropriate fields.
2. Select the operation you need (e.g., find percentage, calculate percentage increase/decrease).
3. Press "Calculate" to get the result instantly.

**Conclusion:**
The Percentage Calculator is an essential tool that simplifies complex percentage calculations, saving time and reducing errors. Its user-friendly interface ensures that anyone can use it with ease, making it a must-have for quick and accurate percentage computations.