Percentages are a fundamental part of everyday life, used in everything from shopping discounts to financial reports and statistical analysis. This Percentage Calculator is designed to make these calculations simple and intuitive. It specifically answers the common question: "What is a certain percentage of a given number?" This is useful for figuring out a tip, calculating sales tax, determining a commission, or understanding a quantity in a larger context. The user interface is broken down into a simple sentence structure to make it clear what you are calculating. In the first input box, labeled "What is," you enter the percentage you want to find. For example, if you want to calculate 20%, you would enter '20'. The '%' symbol is already provided for you. In the second input box, labeled "of," you enter the total number or value from which you are calculating the percentage. For instance, if you want to find 20% of 150, you would enter '150'. Once you have entered both values, click the 'Calculate' button. The tool will instantly compute the result and display it clearly below. Following the example, it would show that 20% of 150 is 30. The tool handles both whole numbers and decimals, making it versatile for a wide range of applications, from quick mental math checks to more complex financial calculations.