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Percentage Calculator

Calculate percentages instantly online for free. Find percentage of a number, percentage change, and more.

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Percentage Calculator — percentage calculator online free

Flixfer's Percentage Calculator solves all common percentage problems instantly — finding what percentage one number is of another, calculating percentage increase or decrease, finding the original value before a percentage change, and more. All calculations happen in your browser with instant results and a clear explanation of how each answer was reached.

calculate percentage percentage of a number percent change calculator percentage increase decrease

Features

  • Calculate X% of Y (e.g., 15% of 200)
  • Find what % one number is of another
  • Calculate percentage increase and decrease
  • Find the original value from a percentage change
  • Step-by-step calculation explanation
  • Instant results with no button pressing

How to use Percentage Calculator

  1. Open the Percentage Calculator tool.
  2. Choose the type of calculation you need.
  3. Enter the values into the input fields.
  4. Your answer appears instantly.
  5. Read the step-by-step explanation to verify.

FAQ

How do I calculate a percentage of a number?
How do I calculate percentage increase?
How do I find the original price after a discount?
What percentage is 30 out of 120?
How do I calculate GST percentage?

Percentage Formulas You Need to Know

Problem TypeFormulaExample
X% of Y(X ÷ 100) × Y20% of 500 = 100
X is what % of Y?(X ÷ Y) × 10075 is 25% of 300
% Increase((New − Old) ÷ Old) × 10080 → 100 = 25% increase
% Decrease((Old − New) ÷ Old) × 100100 → 80 = 20% decrease
Original from % increaseNew ÷ (1 + Rate)₹1,200 after 20% rise → ₹1,000
Original from % decreaseNew ÷ (1 − Rate)₹850 after 15% off → ₹1,000

Real-World Percentage Calculation Scenarios

  • Shopping discounts — "30% off ₹2,499" → Saving = ₹749.70, Final price = ₹1,749.30.
  • Salary increases — Calculate your exact new salary after a 12% raise.
  • Exam scores — "I scored 67/80 in my exam — what percentage is that?" → 83.75%.
  • GST calculations — Add 18% GST to a product price, or extract GST from a GST-inclusive price.
  • Investment returns — Calculate the percentage return on an investment over time.
  • Recipe scaling — Scale a recipe to 75% or 150% of its original quantities.

Related Financial Tools

  • GST Calculator — Calculate GST at 5%, 12%, 18%, or 28% rates with reverse GST support.
  • EMI Calculator — Calculate monthly loan installments with amortization breakdown.
  • Profit Margin Calculator — Calculate gross and net profit margins for your business.

Benefits

  • Faster than a standard calculator for percentage problems
  • Clear explanations prevent calculation errors
  • Handles all common percentage calculation types
  • Free, no account, works on all devices