Percentage Calculator
Calculate percentages, increases, decreases, and discounts instantly.
1 What is X% of Y?
Instant Result:
0
2 X is what percent of Y?
Instant Result:
0%
3 Calculate percentage change (increase or decrease) from X to Y:
Instant Result:
0%
Calculate percentages, percentage changes, and discounts instantly and accurately.
An all-in-one percentage calculator that helps you find a percentage of a value, calculate percentage increases or decreases, and easily solve shopping discounts or sales metrics.
How to Use
1. Select the specific calculation type from the three flexible templates.
2. Enter your values and percentages.
3. Click 'Calculate' to see the instant result along with the mathematical breakdown.
Key Benefits
- Supports 3 different percentage calculation models
- Shows the exact mathematical breakdown for educational purposes
- Lightweight, secure, and runs entirely in your local browser
- 100% free with no registration or limits
Frequently Asked Questions
How do I calculate a discount percentage?
Use the first calculator option: enter the discount percentage (e.g. 15%) and the original price (e.g. $80) to get the discounted value and final price instantly.
What is the formula for percentage increase/decrease?
It is calculated by taking the difference between the new value and old value, dividing by the old value, and multiplying by 100. Our tool automates this instantly.