Percentage Calculator

All-in-one Percentage Calculator. Get instant results for percent of a number, what percent is X of Y, and percent change (increase/decrease) with clear, step-by-step formulas.



What is X% of Y?

Result (Value)
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    X is what percent of Y?

    Percent (%)
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      Percentage Increase/Decrease

      Change (% Change)
      Show Formula & Steps

        How the Percentage Calculator Works

        Our tool is designed for precision, speed, and comprehension. Unlike simple online calculators, this utility provides instant results and detailed, step-by-step formulas for every calculation, ensuring you understand the mathematics behind the answer.

        Common Percentage Use Cases

        🔢 Calculating Discounts & Taxes

        Use the "Percent of a Number" tool to quickly find out how much money you save on a discount (e.g., 20% off $500). You can also use it to determine the exact tax amount added to a final price.

        📈 Tracking Financial Growth

        The "Percentage Change" tool is essential for finance. Track the percent increase or percent decrease in investments, stock prices, or monthly budget expenses to monitor financial performance accurately.

        🎓 Determining Grades and Ratios

        The "X is what percent of Y" tool is perfect for academic use. Instantly calculate your grade percentage by entering points scored (X) out of total possible points (Y), or determine any ratio to percentage conversion.

        Financial Tools