Percentage Calculator
Calculate Discounts, Profit/Loss, and Percentage Changes
Perform quick percentage calculations including discounts, markups, and percentage changes. Perfect for shopping, business, and academic use.
Basic Percentage Calculator
Calculate a percentage of a number
Real-World Examples
See how percentage calculations apply to everyday situations
Shopping Discount
You found a jacket priced at $120 with a 25% discount.
Investment Growth
Your stock portfolio grew from $5,000 to $6,500.
Business Profit
You bought items for $800 and sold them for $1,200.
Grade Calculation
You scored 85 out of 100 in an exam.
Salary Increase
Your salary increased from $50,000 to $55,000.
Tax Calculation
Calculate 8% sales tax on a $250 purchase.
About Percentage Calculations
Basic Percentage
To find X% of Y: multiply Y by X, then divide by 100.
Percentage Change
Formula: ((New Value - Original Value) ÷ Original Value) × 100
Discount
Discounted Price = Original Price - (Original Price × Discount % ÷ 100)
Profit/Loss
Profit/Loss = Selling Price - Cost Price
Profit/Loss Percentage = (Profit/Loss ÷ Cost Price) × 100
What is a Percentage Calculator?
A percentage calculator is a versatile mathematical tool that helps you perform various percentage-related calculations quickly and accurately. Whether you‘re shopping for discounts, analyzing business profits, or calculating grade percentages, this tool simplifies complex mathematical operations into easy-to-use interfaces.
Common Use Cases
- • Shopping discounts and sales
- • Business profit and loss analysis
- • Academic grade calculations
- • Investment growth tracking
- • Tax and tip calculations
- • Market analysis and statistics
Key Features
- • Multiple calculation modes
- • Instant results with detailed breakdown
- • No registration required
- • Mobile-friendly interface
- • Accurate to 2 decimal places
- • Free to use unlimited times
Frequently Asked Questions
Tips for Percentage Calculations
Quick Mental Math Tips
- 10%: Move decimal point one place left (10% of 250 = 25)
- 25%: Divide by 4 (25% of 100 = 25)
- 50%: Divide by 2 (50% of 80 = 40)
- 1%: Move decimal point two places left (1% of 300 = 3)
Common Mistakes to Avoid
- • Don‘t confuse percentage points with percentages
- • Always check if you need the percentage OF or AS a percentage
- • Remember that 50% off then 50% off ≠ 100% off
- • Be careful with negative percentage changes