Percentages are everywhere in daily life — discounts during sales, exam scores, profit margins, tax rates, and salary hikes all use percentage math. A percentage represents a fraction of 100, making it easy to compare values on a common scale. Whether you need to find 15% of a bill or determine how much a stock price has changed, a reliable percentage calculator saves time and reduces errors.
Our percentage calculator offers two essential functions. First, find what percentage of a number equals a given percent — for example, what is 20% of ₹2,500? Second, calculate the percentage change between two values, which tells you whether something increased or decreased and by how much. This is widely used in finance (comparing stock prices), business (measuring sales growth), and academics (tracking grade improvements).
To calculate percentage of a number, multiply the number by the percentage and divide by 100. For percentage change, subtract the original value from the new value, divide by the original value, and multiply by 100. A positive result indicates growth; a negative result indicates a decline. For instance, if a product's price rises from ₹800 to ₹1,000, the percentage increase is 25%.
This tool updates results in real time as you type, making it perfect for quick mental math verification while shopping, negotiating, or studying. Keep in mind that percentage change is undefined when the original value is zero, and always double-check critical financial calculations.