Percentage Calculator
Calculate percentages, percentage changes, and discounts instantly
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Back to Finance CalculatorsHow to Use the Percentage Calculator
Percentage calculations are essential in everyday life, from calculating discounts during shopping to determining tax amounts and analyzing financial data. Our free percentage calculator simplifies these calculations, providing instant and accurate results for various percentage-related problems.
Whether you need to find what percentage one number is of another, calculate percentage increases or decreases, or determine the final price after a discount, this tool handles it all. For example, if a $100 item has a 20% discount, our calculator instantly shows you'll save $20 and pay $80. It's perfect for shopping, business calculations, academic work, and personal finance.
Common uses include calculating sales tax, figuring out restaurant tips, determining grade percentages, analyzing investment returns, and comparing price changes. The calculator works with any numbers and provides clear, easy-to-understand results that you can trust for decision-making.
Frequently Asked Questions
How do I calculate what percentage one number is of another?
To find what percentage X is of Y, divide X by Y and multiply by 100. For example, 25 is what percent of 200? Calculate (25 ÷ 200) × 100 = 12.5%. Our calculator does this automatically when you input the numbers.
What's the difference between percentage increase and percentage decrease?
Percentage increase shows how much a value has grown relative to the original, while percentage decrease shows the reduction. Both are calculated using the formula: ((New Value - Original Value) / Original Value) × 100. Positive results indicate increase, negative indicate decrease.
Can I use this calculator for discounts and sales tax?
Yes. For discounts, enter the original price and discount percentage to see the amount saved and final price. For sales tax, enter the pre-tax price and tax rate to calculate the tax amount and total cost. The calculator handles both scenarios accurately.
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