Percentage Calculator
Quickly and easily calculate percentages, ratios, increase/decrease rates, and discounts.
Percentage of a Value
Calculate a specific percentage value from a total amount.
Percentage Share
Calculate what percentage a part is of a total value.
Percentage Change
Calculate the percentage increase or decrease from a base value.
Percentage Increase / Decrease
Add or subtract a specific percentage from a base value.
What is Percentage Calculation?
A percentage (%) is a unit representing a fraction of 100. In everyday life, percentages are widely used to calculate discounts, sale prices, test scores, investment returns, sales growth rates, and more. With this Percentage Calculator, you can easily find specific percentage values, ratios, rate changes, and price adjustments without needing manual equations.
For instance, 20% of $50,000 is $10,000, and an increase from 100 to 120 represents a 20% growth rate. Simply enter your numbers into the fields above to get immediate results.
Percentage Formulas
- Percentage Value = Total Value × (Percentage ÷ 100)
- Percentage Share = (Part Value ÷ Total Value) × 100
- Percentage Change = ((New Value - Base Value) ÷ Base Value) × 100
- Increased Amount = Base Value × (1 + Percentage ÷ 100)
- Decreased Amount = Base Value × (1 - Percentage ÷ 100)
Calculation Examples
| Calculation | Result |
|---|---|
| 20% of 100 | 20 |
| 15% of $50,000 | $7,500 |
| What percentage is 80 of 200? | 40% |
| Growth rate from 100 to 125 | 25% |
| 30% decrease from 1,000 | 700 |
Frequently Asked Questions (FAQ)
Q. How do I calculate a percentage?
Percentages are calculated using the formula: Total Value × (Percentage ÷ 100). For example, 15% of 1,000 is 150.
Q. How do I calculate a ratio or percentage share?
Ratios are calculated using: (Part Value ÷ Total Value) × 100. For example, if the total is 500 and the part is 50, the ratio is 10%.
Q. How do I calculate percentage increase and decrease?
Percentage change is calculated as: ((New Value − Base Value) ÷ Base Value) × 100. A positive result indicates an increase, while a negative result indicates a decrease.
Q. Can I use this for discount calculations?
Yes. By entering the original price and the discount percentage, you can quickly find the total saved amount and final reduced price.
Q. Can I use this calculator on smartphones?
Yes. This Percentage Calculator is fully responsive and designed to work across desktop computers, tablets, and mobile smartphones.