Percentage Calculator

Percentage Calculator - Free Online Calculator

The Percentage Calculator helps you find the percentage of any number instantly. Percentages are part of everyday life: calculating shopping discounts, GST, exam marks, salary hikes, interest rates, tips, profit and loss and business growth. This free online percentage calculator removes the effort and gives you accurate answers in seconds. What is a Percentage? A percentage is a number or ratio expressed as a fraction of 100. The word comes from the Latin "per centum", meaning "by the hundred", and it is written with the symbol %. For example, 45% means 45 out of 100, or 0.45. Percentage Formula Result = (Percentage ÷ 100) × Base value Example: 25% of 640 = (25 ÷ 100) × 640 = 160 Other Useful Percentage Formulas • What percent is X of Y: (X ÷ Y) × 100. Example: 45 out of 60 = 75% • Percentage increase: [(New value − Old value) ÷ Old value] × 100. Example: salary from ₹40,000 to ₹46,000 = 15% increase • Percentage decrease: [(Old value − New value) ÷ Old value] × 100. Example: price from ₹1,000 to ₹800 = 20% decrease • Marks percentage: (Marks obtained ÷ Total marks) × 100. Example: 432 out of 500 = 86.4% • Discount price: Original price × (1 − Discount% ÷ 100). Example: ₹2,500 at 30% off = ₹1,750 How to Use the Percentage Calculator? 1. Enter the percentage value (for example 18). 2. Enter the base number (for example 1,500). 3. The calculator shows the result instantly (18% of 1,500 = 270). Common Percentage Examples • 10% of 500 = 50 • 15% of 200 = 30 • 18% GST on ₹2,000 = ₹360 • 20% of 750 = 150 • 25% of 1,200 = 300 • 33% of 900 = 297 • 50% of 85 = 42.5 • 75% of 400 = 300 • 12.5% of 1,600 = 200 Percentage Shortcuts for Exams • 10% of a number: move the decimal one place to the left (10% of 350 = 35). • 1% of a number: move the decimal two places to the left (1% of 350 = 3.5). • 5% is half of 10%, and 20% is double 10%. • 50% = 1/2, 25% = 1/4, 20% = 1/5, 12.5% = 1/8. • X% of Y is the same as Y% of X (8% of 50 = 50% of 8 = 4). Where are Percentages Used? • Shopping: discounts, cashback and offers. • Taxes: GST, income tax slabs and TDS. • Education: exam marks, cut-offs and percentile comparisons. • Finance: interest rates, loan EMIs, investment returns and inflation. • Business: profit margins, growth rates and market share. • Health: body fat percentage and nutrition labels. Percentage questions are common in competitive exams such as CAT, SSC, bank PO, railways and campus aptitude tests, so mastering them is very useful. This calculator is free and works on any device. See the FAQs below for more help.