Percentage Calculator – Solve Common Percent Problems Fast
Use this free percentage calculator to find percentages, percentage increase, percentage decrease, percent of a number, and what percent one number is of another.
Percentage Calculator
Choose a percentage problem type and calculate the answer with step-by-step working.
Percentage Calculator
Answer:
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Use a form above to calculate.
Solution:
Step-by-step solution will appear here.
Use this calculator to find percentage of a whole or work out the percentage given numbers and percent values. It also supports adding and subtracting percentages.
Understanding Percentage
A percentage is part of a whole, expressed as a fraction of 100 using the % symbol. Percentages help compare relative values across different scales.
How to Calculate Percentages
The main formula is (X / Y) × 100 = P%.
- Find what percent one number is of another: P% = Y ÷ X
- Find P percent of X: Y = P% × X
- Find X if Y is P percent of X: X = Y ÷ P%
Common Percentage Problems
- What is P percent of X?
- Y is what percent of X?
- Y is P percent of what?
- P percent of what is Y?
How to Use
- Select a percentage problem type from the dropdown.
- Enter the required values in the fields.
- Click Calculate to see the answer.
- Review the step-by-step solution shown below the result.
How This Calculator Works
This percentage calculator uses standard percentage formulas to solve common problems, including percent of a number, what percent one number is of another, and percentage increase or decrease.
Frequently Asked Questions
What is a percentage calculator?
A percentage calculator helps solve problems involving percentages, proportions, and percentage change.
Can it calculate percentage increase and decrease?
Yes, this calculator can solve percentage increase and decrease problems along with standard percent-of-number calculations.
Does it show steps?
Yes, each calculation includes step-by-step working so you can understand how the result was found.