FREE ONLINE CALCULATOR
Percentage Calculator
Find what percentage a number is of another or calculate a percentage amount.
36015% of 2,400
2,040After Subtracting % (Discount)
2,760After Adding % (Markup)
Free to use. Calculation runs in your browser; no account required.
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Everyday Percentage Formulas & Practical Examples
Percentages express a ratio out of 100 and are used daily for shopping discounts, exam score calculations, salary hikes, tax deductions, profit margins, and tip estimates. Our calculator computes the exact percentage value, the discounted total (after subtracting X%), and the marked-up total (after adding X%) in a single view.
• X% of Y = (X / 100) × Y
• Price After X% Discount = Y − ((X / 100) × Y)
• Value After X% Increase = Y + ((X / 100) × Y)
• Price After X% Discount = Y − ((X / 100) × Y)
• Value After X% Increase = Y + ((X / 100) × Y)
Common Use Cases
- Shopping & Sale Discounts: Enter the discount percentage (e.g., 25%) and the MRP to instantly see both your cash savings and final checkout price.
- Academic & Exam Marks: Calculate the marks needed to pass an exam threshold or convert percentage targets into raw scores.
- Finance & Billing: Estimate service charges, commission fees, or salary increments without manual spreadsheet formulas.
Frequently Asked Questions
How do I calculate percentage change between two numbers?
Subtract the old value from the new value, divide by the old value, and multiply by 100: ((New − Old) / Old) × 100.