Percentage Calculator – Free Online Tool
Quick Answer
Calculate percentages, increases, and decreases easily with this free percentage calculator from Toolscal. Enter your values and get instant results for discounts, taxes, and more without signup or downloads.
Calculate percentages, percentage increases, and decreases with ease
What is Percentage Calculator? A percentage calculator computes percentage values instantly using three formulas: X% of Y equals (X ÷ 100) × Y. X as % of Y equals (X ÷ Y) × 100. Percentage change equals ((New - Old) ÷ Old) × 100. Example: 20% of 100 equals 20.
What is X% of Y?
X is what % of Y?
Percentage Increase/Decrease from X to Y
📐 Percentage Formulas
What is X% of Y?
Formula: (X ÷ 100) × Y = Result
Example: 20% of 100 equals (20 ÷ 100) × 100 = 20
X is what % of Y?
Formula: (X ÷ Y) × 100 = Result%
Example: 25 is what % of 100? (25 ÷ 100) × 100 = 25%
Percentage Increase/Decrease
Formula: ((New - Old) ÷ Old) × 100 = Change%
Example: From 50 to 75: ((75-50) ÷ 50) × 100 = 50% increase
Example: From 100 to 80: ((80-100) ÷ 100) × 100 = -20% decrease
About This Tool
Multi-purpose percentage calculator. Computes percentages, percentage of values, and percentage increase/decrease.
Accuracy Information
Percentage = (Part ÷ Whole) × 100How to Use
- 1Choose the type of percentage calculation you need
- 2Enter the required numbers in the input fields
- 3View the calculated result instantly
- 4Use the result for your financial, mathematical, or business calculations
Why Use This Tool?
- Calculate discounts and sale prices
- Find tax amounts and final prices
- Calculate tips at restaurants
- Determine grade percentages
- Analyze business growth and financial metrics
💡Practical Examples
1. Shopping Sale Discount
A customer sees a jacket originally priced at ₹5,000 with a 30% off sale. They want to know the final price.
2. Restaurant Tip Calculator
After a nice dinner, you want to leave a 15% tip on a ₹2,500 bill.
3. Exam Grade Calculation
A student scored 85 out of 100 marks and wants to know their percentage grade.
4. Business Revenue Growth
A startup had ₹10 lakh revenue last year and ₹15 lakh this year. What's the percentage increase?
5. GST Tax Calculation
A business owner needs to add 18% GST to a product priced at ₹1,000.
🔒Is This Tool Official or Safe?
This is an informational tool. It is not affiliated with or endorsed by any government agency or official organization. This tool is designed to help you with calculations and information lookup, but always verify critical information with official sources.
Frequently Asked Questions
How do you calculate a percentage?
Percentage equals (Part ÷ Whole) × 100. Example: 25 is what % of 100? Answer: (25 ÷ 100) × 100 = 25%.
What is 20% of 100?
20% of 100 equals 20. Formula: (20 ÷ 100) × 100 = 20. Or: 100 × 0.20 = 20.
How to calculate percentage increase?
Percentage Increase equals ((New - Old) ÷ Old) × 100. Example: From 50 to 75: ((75-50) ÷ 50) × 100 = 50% increase.
How to calculate discount percentage?
Discount % equals ((Original - Sale) ÷ Original) × 100. Example: $100 to $75: ((100-75) ÷ 100) × 100 = 25% off.
What is 10 as a percentage of 50?
10 is 20% of 50. Formula: (10 ÷ 50) × 100 = 20%.
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