To calculate a percentage, you typically divide the part (the smaller value) by the whole (the larger value), and then multiply the result by 100. This gives you the percentage value as a number between 0 and 100. Use this calculator to find percentage of a whole or work out the percentage given numbers and percent values. See how to use percent formulas to calculate percentages and find unknowns in percent equations. We see percentages everywhere — in shopping discounts, exam scores, interest rates, tip calculations, statistics, and even food labels. Steps to find the percentage of a number - Method 2 Another method is to use keywords and multiplication. Let's look again at the problem. What is 25% of 30? First, look for keywords that suggest an operation. The word of tells you to multiply 30 by 25%. Percentage calculator is a free online tool that solves eight different types of percent-related problems. To get a step-by-step solution for percentage problems, simply enter the values in the appropriate sentence. To calculate a percentage based upon a part (X) and a total (Y), divide the value of the part (X) by the total or whole amount (Y). Then, multiply the result by 100. As an example, if you want to find what percentage 15 is of 300, you would divide 15 by 300, resulting in 0.05. Multiplying 0.05 by 100 gives you 5%. To find 25% of a number, divide it by 4. Find 25% and then multiply that by 3. In this formula, the “Part” refers to the portion or fraction of the whole that you want to express as a percentage, and the “Whole” refers to the total or complete value. Percentage, denoted by the symbol '%,' represents the proportion of a number to 100. It can be described as the amount per hundred, from the Latin word per centum. The concept of percentages allows us to express ratios in a uniform scale, making it convenient to compare different values. How do you calculate 25% of 30? To calculate 25% of 30, multiply 30 by 25 and divide by 100. The result is 7.5. In mathematics, a percentage is a number or ratio that represents a fraction of 100. It is one of the ways to represent a dimensionless relationship between two numbers; other methods include ratios, fractions, and decimals. Percentages are often denoted by the symbol % written after the number. Finding a percentage of a number is a very common math skill, useful in many everyday situations, such as discounts, statistics, and budgeting. In this case, we want to determine what 25% of 30 is. This means calculating 25 out of every 100 parts of the number 30.