Percentage Calculator

About Percentage Calculator

This free percentage calculator handles every common percent calculation you will encounter in daily life, school, or work. It offers three powerful modes so you always get the answer you need. In the first mode, find what X percent of Y is, for example what is 15% of 200? The formula is simple: multiply the number by the percentage and divide by 100, giving you 30. This is the go-to calculation for figuring out shopping discounts, sales tax amounts, restaurant tips, and commission earnings. In the second mode, determine what percent one number is of another. For instance, if you scored 42 out of 50 on a test, enter both numbers to find that your score is 84%. This mode is essential for grade calculations, performance metrics, and comparing proportions. The third mode calculates percentage change between two values, whether it is an increase or a decrease. Enter the old value and the new value, and the calculator applies the formula: ((New - Old) / Old) x 100. Use this for tracking salary increases, stock price changes, population growth, weight loss progress, or year-over-year revenue comparisons. Real-world examples where a percentage calculator proves indispensable include computing a 20% discount on a product priced at PKR 5,000 (saving PKR 1,000), calculating an 18% tip on a dinner bill, determining how much a 10% salary raise adds to your monthly pay, or checking how prices changed between two periods. Whether you are a student solving math homework, a shopper hunting for deals, or a professional analyzing financial data, this percentage calculator gives you instant, accurate answers without needing to remember the formulas yourself.